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145256760 = 233351112227
BaseRepresentation
bin10001010100001…
…11000100111000
3101010022210211000
420222013010320
5244141204020
622225205000
73412443045
oct1052070470
9333283730
10145256760
1174aa2610
1240790760
132412ac5c
14154121cc
15cb44090
hex8a87138

145256760 has 128 divisors (see below), whose sum is σ = 528249600. Its totient is φ = 35210880.

The previous prime is 145256719. The next prime is 145256777. The reversal of 145256760 is 67652541.

It is a happy number.

145256760 is a `hidden beast` number, since 14 + 525 + 67 + 60 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5767 + ... + 17993.

It is an arithmetic number, because the mean of its divisors is an integer number (4126950).

Almost surely, 2145256760 is an apocalyptic number.

145256760 is a gapful number since it is divisible by the number (10) 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 145256760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264124800).

145256760 is an abundant number, since it is smaller than the sum of its proper divisors (382992840).

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

145256760 is a wasteful number, since it uses less digits than its factorization.

145256760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12258 (or 12248 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 145256760 is about 12052.2512419879. The cubic root of 145256760 is about 525.6686989288.

The spelling of 145256760 in words is "one hundred forty-five million, two hundred fifty-six thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 88 90 99 108 110 120 132 135 165 180 198 216 220 264 270 297 330 360 396 440 495 540 594 660 792 990 1080 1188 1320 1485 1980 2376 2970 3960 5940 11880 12227 24454 36681 48908 61135 73362 97816 110043 122270 134497 146724 183405 220086 244540 268994 293448 330129 366810 403491 440172 489080 537988 550215 660258 672485 733620 806982 880344 1075976 1100430 1210473 1320516 1344970 1467240 1613964 1650645 2017455 2200860 2420946 2641032 2689940 3227928 3301290 3631419 4034910 4401720 4841892 5379880 6052365 6602580 7262838 8069820 9683784 12104730 13205160 14525676 16139640 18157095 24209460 29051352 36314190 48418920 72628380 145256760