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10001525431 = 53194996823
BaseRepresentation
bin10010101000010001…
…10010101010110111
3221211000122010121211
421110020302222313
5130440342303211
64332235222251
7502563364162
oct112410625267
927730563554
1010001525431
1142726670a7
121b315a7987
13c351028b1
146ac43cad9
153d80aee21
hex254232ab7

10001525431 has 8 divisors (see below), whose sum is σ = 10195567200. Its totient is φ = 9807681312.

The previous prime is 10001525419. The next prime is 10001525447. The reversal of 10001525431 is 13452510001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001525431 - 29 = 10001524919 is a prime.

It is a super-2 number, since 2×100015254312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001525231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54886 + ... + 151708.

It is an arithmetic number, because the mean of its divisors is an integer number (1274445900).

Almost surely, 210001525431 is an apocalyptic number.

10001525431 is a deficient number, since it is larger than the sum of its proper divisors (194041769).

10001525431 is an equidigital number, since it uses as much as digits as its factorization.

10001525431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98825.

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 10001525431 in words is "ten billion, one million, five hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 53 1949 96823 103297 5131619 188708027 10001525431