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572401567421 = 31372571941799
BaseRepresentation
bin10000101010001011100…
…10101100011010111101
32000201110122112102021122
420111011302230122331
533334234300124141
61114542504040325
756232434021315
oct10250562543275
92021418472248
10572401567421
11200832842732
1292b281630a5
1341c91cac628
141d9c0b86445
15ed51ec964b
hex8545cac6bd

572401567421 has 16 divisors (see below), whose sum is σ = 609197030400. Its totient is φ = 536868311040.

The previous prime is 572401567411. The next prime is 572401567477. The reversal of 572401567421 is 124765104275.

It is a happy number.

572401567421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 572401567421 - 26 = 572401567357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572401567411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676121 + ... + 1265678.

It is an arithmetic number, because the mean of its divisors is an integer number (38074814400).

Almost surely, 2572401567421 is an apocalyptic number.

It is an amenable number.

572401567421 is a deficient number, since it is larger than the sum of its proper divisors (36795462979).

572401567421 is a wasteful number, since it uses less digits than its factorization.

572401567421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942124.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 572401567421 in words is "five hundred seventy-two billion, four hundred one million, five hundred sixty-seven thousand, four hundred twenty-one".

Divisors: 1 31 37 257 1147 7967 9509 294779 1941799 60195769 71846563 499042343 2227243453 15470312633 18464566691 572401567421