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12835141920 = 253258913293
BaseRepresentation
bin10111111010000100…
…01011100100100000
31020010111120202200200
423331002023210200
5202241244020140
65521341345200
7633031622556
oct137502134440
936114522620
1012835141920
115497115107
1225a2568200
13129719cc43
1489a8d3bd6
15501c3a030
hex2fd08b920

12835141920 has 72 divisors (see below), whose sum is σ = 43799926716. Its totient is φ = 3422704128.

The previous prime is 12835141919. The next prime is 12835141931. The reversal of 12835141920 is 2914153821.

12835141920 is a `hidden beast` number, since 128 + 3 + 514 + 19 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12505501584 + 329640336 = 111828^2 + 18156^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4455207 + ... + 4458086.

Almost surely, 212835141920 is an apocalyptic number.

12835141920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12835141920 is an abundant number, since it is smaller than the sum of its proper divisors (30964784796).

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

12835141920 is a wasteful number, since it uses less digits than its factorization.

12835141920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8913314 (or 8913303 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 12835141920 in words is "twelve billion, eight hundred thirty-five million, one hundred forty-one thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 8913293 17826586 26739879 35653172 44566465 53479758 71306344 80219637 89132930 106959516 133699395 142612688 160439274 178265860 213919032 267398790 285225376 320878548 356531720 401098185 427838064 534797580 641757096 713063440 802196370 855676128 1069595160 1283514192 1426126880 1604392740 2139190320 2567028384 3208785480 4278380640 6417570960 12835141920