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28092137464 = 2316721027049
BaseRepresentation
bin11010001010011010…
…111111111111111000
32200111210022102222201
4122022122333333320
5430013041344324
620523315555544
72013102141256
oct321232777770
980453272881
1028092137464
1110a06308736
12553bbbbbb4
13285903a861
141506cd55d6
15ae63b6444
hex68a6bfff8

28092137464 has 16 divisors (see below), whose sum is σ = 52988166000. Its totient is φ = 13961959872.

The previous prime is 28092137461. The next prime is 28092137467. The reversal of 28092137464 is 46473129082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28092137461) and next prime (28092137467).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28092137461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10512189 + ... + 10514860.

It is an arithmetic number, because the mean of its divisors is an integer number (3311760375).

Almost surely, 228092137464 is an apocalyptic number.

It is an amenable number.

28092137464 is a deficient number, since it is larger than the sum of its proper divisors (24896028536).

28092137464 is a wasteful number, since it uses less digits than its factorization.

28092137464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21027222 (or 21027218 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 28092137464 in words is "twenty-eight billion, ninety-two million, one hundred thirty-seven thousand, four hundred sixty-four".

Divisors: 1 2 4 8 167 334 668 1336 21027049 42054098 84108196 168216392 3511517183 7023034366 14046068732 28092137464