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52810550018 = 243237792
BaseRepresentation
bin110001001011110000…
…010000101100000010
312001022110100220102222
4301023300100230002
51331124000100033
640132201211042
73546460161062
oct611360205402
9161273326388
1052810550018
11204401a6966
12a29a190a82
134c98121c85
1427adadd3a2
1515914b5598
hexc4bc10b02

52810550018 has 18 divisors (see below), whose sum is σ = 81122362659. Its totient is φ = 25784373972.

The previous prime is 52810549949. The next prime is 52810550041. The reversal of 52810550018 is 81005501825.

It can be written as a sum of positive squares in only one way, i.e., 26405275009 + 26405275009 = 162497^2 + 162497^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=162497.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52810550018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13972853 + ... + 13976631.

Almost surely, 252810550018 is an apocalyptic number.

52810550018 is a deficient number, since it is larger than the sum of its proper divisors (28311812641).

52810550018 is an frugal number, since it uses more digits than its factorization.

52810550018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646 (or 3824 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 35.

The spelling of 52810550018 in words is "fifty-two billion, eight hundred ten million, five hundred fifty thousand, eighteen".

Divisors: 1 2 43 86 1849 3698 3779 7558 162497 324994 6987371 13974742 14280841 28561682 614076163 1228152326 26405275009 52810550018