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52810500000 = 253561719109
BaseRepresentation
bin110001001011110000…
…000100011110100000
312001022110021100211110
4301023300010132200
51331123442000000
640132200143320
73546456562206
oct611360043640
9161273240743
1052810500000
1120440172325
12a29a167b40
134c9810528b
1427adac9076
1515914a5850
hexc4bc047a0

52810500000 has 672 divisors, whose sum is σ = 194903755200. Its totient is φ = 12441600000.

The previous prime is 52810499993. The next prime is 52810500047. The reversal of 52810500000 is 501825.

It is a self number, because there is not a number n which added to its sum of digits gives 52810500000.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 484499946 + ... + 484500054.

It is an arithmetic number, because the mean of its divisors is an integer number (290035350).

Almost surely, 252810500000 is an apocalyptic number.

52810500000 is a gapful number since it is divisible by the number (50) 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 52810500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97451877600).

52810500000 is an abundant number, since it is smaller than the sum of its proper divisors (142093255200).

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

52810500000 is a wasteful number, since it uses less digits than its factorization.

52810500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The spelling of 52810500000 in words is "fifty-two billion, eight hundred ten million, five hundred thousand".