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318017045820 = 2235113367127807
BaseRepresentation
bin1001010000010110100…
…10110000010100111100
31010101212011011210020110
410220023102300110330
520202244330431240
6402032304550020
731655521200615
oct4501322602474
91111764153213
10318017045820
11112963371511
1251773322310
1323cb1749a76
141156bd28c0c
1584142d2c80
hex4a0b4b053c

318017045820 has 96 divisors (see below), whose sum is σ = 900782604288. Its totient is φ = 83824376832.

The previous prime is 318017045813. The next prime is 318017045821. The reversal of 318017045820 is 28540710813.

It is a super-2 number, since 2×3180170458202 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318017045821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2424357 + ... + 2552163.

It is an arithmetic number, because the mean of its divisors is an integer number (9383152128).

Almost surely, 2318017045820 is an apocalyptic number.

318017045820 is a gapful number since it is divisible by the number (30) 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 318017045820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450391302144).

318017045820 is an abundant number, since it is smaller than the sum of its proper divisors (582765558468).

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

318017045820 is a wasteful number, since it uses less digits than its factorization.

318017045820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128299 (or 128297 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 318017045820 in words is "three hundred eighteen billion, seventeen million, forty-five thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 113 226 339 367 452 565 678 734 1101 1130 1356 1468 1695 1835 2202 2260 3390 3670 4404 5505 6780 7340 11010 22020 41471 82942 124413 127807 165884 207355 248826 255614 383421 414710 497652 511228 622065 639035 766842 829420 1244130 1278070 1533684 1917105 2488260 2556140 3834210 7668420 14442191 28884382 43326573 46905169 57768764 72210955 86653146 93810338 140715507 144421910 173306292 187620676 216632865 234525845 281431014 288843820 433265730 469051690 562862028 703577535 866531460 938103380 1407155070 2814310140 5300284097 10600568194 15900852291 21201136388 26501420485 31801704582 53002840970 63603409164 79504261455 106005681940 159008522910 318017045820