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53157947900 = 2252531579479
BaseRepresentation
bin110001100000011101…
…011110100111111100
312002012200001112202012
4301200131132213330
51332331413313100
640230451150352
73561206046641
oct614035364774
9162180045665
1053157947900
11205a9304052
12a3765a53b8
1350220a6955
142803ccddc8
1515b1c38135
hexc6075e9fc

53157947900 has 18 divisors (see below), whose sum is σ = 115352747160. Its totient is φ = 21263179120.

The previous prime is 53157947881. The next prime is 53157947917. The reversal of 53157947900 is 974975135.

It is a super-2 number, since 2×531579479002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265789640 + ... + 265789839.

Almost surely, 253157947900 is an apocalyptic number.

53157947900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53157947900 is an abundant number, since it is smaller than the sum of its proper divisors (62194799260).

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

53157947900 is a wasteful number, since it uses less digits than its factorization.

53157947900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531579493 (or 531579486 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 50.

The spelling of 53157947900 in words is "fifty-three billion, one hundred fifty-seven million, nine hundred forty-seven thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 531579479 1063158958 2126317916 2657897395 5315794790 10631589580 13289486975 26578973950 53157947900