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28999495713 = 317883643961
BaseRepresentation
bin11011000000100000…
…010011000000100001
32202212000200000111210
4123000200103000201
5433342332330323
621153331500333
72044430434506
oct330040230041
982760600453
1028999495713
1111331506391
125753a576a9
13297200c526
1415916094ad
15b4ad98293
hex6c0813021

28999495713 has 16 divisors (see below), whose sum is σ = 40986893376. Its totient is φ = 18175127040.

The previous prime is 28999495699. The next prime is 28999495727. The reversal of 28999495713 is 31759499982.

It is an interprime number because it is at equal distance from previous prime (28999495699) and next prime (28999495727).

It is not a de Polignac number, because 28999495713 - 26 = 28999495649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28999495783) 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, 276948 + ... + 367013.

It is an arithmetic number, because the mean of its divisors is an integer number (2561680836).

Almost surely, 228999495713 is an apocalyptic number.

It is an amenable number.

28999495713 is a deficient number, since it is larger than the sum of its proper divisors (11987397663).

28999495713 is a wasteful number, since it uses less digits than its factorization.

28999495713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644864.

The product of its digits is 44089920, while the sum is 66.

The spelling of 28999495713 in words is "twenty-eight billion, nine hundred ninety-nine million, four hundred ninety-five thousand, seven hundred thirteen".

Divisors: 1 3 17 51 883 2649 15011 45033 643961 1931883 10947337 32842011 568617563 1705852689 9666498571 28999495713