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11572030631 = 72957005077
BaseRepresentation
bin10101100011011111…
…10010110010100111
31002212110211001202002
422301233302302213
5142144414440011
65152140435515
7556523431430
oct126157626247
932773731662
1011572030631
1149a9122987
1222ab548b9b
1311255ac605
147bac56487
1547add4c3b
hex2b1bf2ca7

11572030631 has 8 divisors (see below), whose sum is σ = 13681218720. Its totient is φ = 9576852768.

The previous prime is 11572030627. The next prime is 11572030697. The reversal of 11572030631 is 13603027511.

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

It is not a de Polignac number, because 11572030631 - 22 = 11572030627 is a prime.

It is a super-2 number, since 2×115720306312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11572030594 and 11572030603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572038631) 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, 28502336 + ... + 28502741.

It is an arithmetic number, because the mean of its divisors is an integer number (1710152340).

Almost surely, 211572030631 is an apocalyptic number.

11572030631 is a deficient number, since it is larger than the sum of its proper divisors (2109188089).

11572030631 is an equidigital number, since it uses as much as digits as its factorization.

11572030631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57005113.

The product of its (nonzero) digits is 3780, while the sum is 29.

The spelling of 11572030631 in words is "eleven billion, five hundred seventy-two million, thirty thousand, six hundred thirty-one".

Divisors: 1 7 29 203 57005077 399035539 1653147233 11572030631