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531372062538 = 23229520670141
BaseRepresentation
bin1111011101110000011…
…11100011011101001010
31212210120020021121120200
413232320033203131022
532201222222000123
61044035311233030
753250616002462
oct7567017433512
91783506247520
10531372062538
11195398749409
1286b97518776
133b15385c3a5
141ba0b98aba2
15dc4ee34143
hex7bb83e374a

531372062538 has 12 divisors (see below), whose sum is σ = 1151306135538. Its totient is φ = 177124020840.

The previous prime is 531372062537. The next prime is 531372062579. The reversal of 531372062538 is 835260273135.

531372062538 is a `hidden beast` number, since 5 + 3 + 1 + 37 + 20 + 62 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 332021421369 + 199350641169 = 576213^2 + 446487^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 531372062493 and 531372062502.

It is not an unprimeable number, because it can be changed into a prime (531372062537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14760335053 + ... + 14760335088.

Almost surely, 2531372062538 is an apocalyptic number.

531372062538 is an abundant number, since it is smaller than the sum of its proper divisors (619934073000).

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

531372062538 is a wasteful number, since it uses less digits than its factorization.

531372062538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29520670149 (or 29520670146 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 531372062538 in words is "five hundred thirty-one billion, three hundred seventy-two million, sixty-two thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 18 29520670141 59041340282 88562010423 177124020846 265686031269 531372062538