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10164430631 = 28136172351
BaseRepresentation
bin10010111011101100…
…01110011100100111
3222020101011120112202
421131312032130213
5131304043240011
64400335005115
7506612143355
oct113566163447
928211146482
1010164430631
1143466131a3
121b7806979b
13c5ca9c7c4
146c5d267d5
153e753d23b
hex25dd8e727

10164430631 has 4 divisors (see below), whose sum is σ = 10200603264. Its totient is φ = 10128258000.

The previous prime is 10164430609. The next prime is 10164430637. The reversal of 10164430631 is 13603446101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10164430631 is a prime.

It is a super-2 number, since 2×101644306312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10164430594 and 10164430603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10164430637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18085895 + ... + 18086456.

It is an arithmetic number, because the mean of its divisors is an integer number (2550150816).

Almost surely, 210164430631 is an apocalyptic number.

10164430631 is a deficient number, since it is larger than the sum of its proper divisors (36172633).

10164430631 is an equidigital number, since it uses as much as digits as its factorization.

10164430631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36172632.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 10164430631 its reverse (13603446101), we get a palindrome (23767876732).

The spelling of 10164430631 in words is "ten billion, one hundred sixty-four million, four hundred thirty thousand, six hundred thirty-one".

Divisors: 1 281 36172351 10164430631