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12835815500 = 225325671631
BaseRepresentation
bin10111111010001001…
…10000000001001100
31020010112211222200002
423331010300001030
5202241432044000
65521404023432
7633040426424
oct137504600114
936115758602
1012835815500
115497535192
1225a2831b78
131297377701
1489aa2b484
15501d1e8d5
hex2fd13004c

12835815500 has 24 divisors (see below), whose sum is σ = 28033422144. Its totient is φ = 5134326000.

The previous prime is 12835815493. The next prime is 12835815523. The reversal of 12835815500 is 551853821.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12835316 + ... + 12836315.

It is an arithmetic number, because the mean of its divisors is an integer number (1168059256).

Almost surely, 212835815500 is an apocalyptic number.

12835815500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12835815500 is an abundant number, since it is smaller than the sum of its proper divisors (15197606644).

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

12835815500 is a wasteful number, since it uses less digits than its factorization.

12835815500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671650 (or 25671638 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 12835815500 in words is "twelve billion, eight hundred thirty-five million, eight hundred fifteen thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 25671631 51343262 102686524 128358155 256716310 513432620 641790775 1283581550 2567163100 3208953875 6417907750 12835815500