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145086999768 = 23342937208667
BaseRepresentation
bin1000011100011111011…
…0111110110011011000
3111212111100210020120000
42013013312332303120
54334114232443033
6150352501533000
713324251102264
oct2070766766330
9455440706500
10145086999768
1156592913387
1224151414160
13108b2762029
1470450990a4
153b92610a13
hex21c7dbecd8

145086999768 has 160 divisors (see below), whose sum is σ = 431754958800. Its totient is φ = 45432430848.

The previous prime is 145086999763. The next prime is 145086999773. The reversal of 145086999768 is 867999680541.

145086999768 is a `hidden beast` number, since 1 + 450 + 86 + 9 + 9 + 97 + 6 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (145086999763) and next prime (145086999773).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 145086999696 and 145086999705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145086999763) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 590971 + ... + 799637.

Almost surely, 2145086999768 is an apocalyptic number.

145086999768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145086999768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215877479400).

145086999768 is an abundant number, since it is smaller than the sum of its proper divisors (286667959032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145086999768 is a wasteful number, since it uses less digits than its factorization.

145086999768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208751 (or 208738 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 72.

The spelling of 145086999768 in words is "one hundred forty-five billion, eighty-six million, nine hundred ninety-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 29 36 37 54 58 72 74 81 87 108 111 116 148 162 174 216 222 232 261 296 324 333 348 444 522 648 666 696 783 888 999 1044 1073 1332 1566 1998 2088 2146 2349 2664 2997 3132 3219 3996 4292 4698 5994 6264 6438 7992 8584 9396 9657 11988 12876 18792 19314 23976 25752 28971 38628 57942 77256 86913 115884 173826 208667 231768 347652 417334 626001 695304 834668 1252002 1669336 1878003 2504004 3756006 5008008 5634009 6051343 7512012 7720679 11268018 12102686 15024024 15441358 16902027 18154029 22536036 23162037 24205372 30882716 33804054 36308058 45072072 46324074 48410744 54462087 61765432 67608108 69486111 72616116 92648148 108924174 135216216 138972222 145232232 163386261 185296296 208458333 217848348 223899691 277944444 326772522 416916666 435696696 447799382 490158783 555888888 625374999 653545044 671699073 833833332 895598764 980317566 1250749998 1307090088 1343398146 1667666664 1791197528 1960635132 2015097219 2501499996 2686796292 3921270264 4030194438 5002999992 5373592584 6045291657 8060388876 12090583314 16120777752 18135874971 24181166628 36271749942 48362333256 72543499884 145086999768