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28317882037 = 793531015451
BaseRepresentation
bin11010010111111000…
…001001011010110101
32201002112002110022211
4122113320021122311
5430443334211122
621001542253421
72021513011564
oct322770113265
981075073284
1028317882037
11110117849a5
1255a3727271
132893a39c23
141528c99bdb
15b0b108877
hex697e096b5

28317882037 has 8 divisors (see below), whose sum is σ = 28757600640. Its totient is φ = 27880195200.

The previous prime is 28317882029. The next prime is 28317882041. The reversal of 28317882037 is 73028871382.

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 28317882037 - 23 = 28317882029 is a prime.

It is a super-2 number, since 2×283178820372 (a number of 22 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 (28317880037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479839 + ... + 535612.

It is an arithmetic number, because the mean of its divisors is an integer number (3594700080).

Almost surely, 228317882037 is an apocalyptic number.

It is an amenable number.

28317882037 is a deficient number, since it is larger than the sum of its proper divisors (439718603).

28317882037 is a wasteful number, since it uses less digits than its factorization.

28317882037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015883.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 28317882037 in words is "twenty-eight billion, three hundred seventeen million, eight hundred eighty-two thousand, thirty-seven".

Divisors: 1 79 353 27887 1015451 80220629 358454203 28317882037