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27936900671 = 137659309437
BaseRepresentation
bin11010000001001010…
…110100011000111111
32200002222012121010212
4122001022310120333
5424203321310141
620500052423035
72006205511001
oct320112643077
980088177125
1027936900671
1110936719a69
1254b8017a7b
132832b27174
1414d0446371
15ad79502eb
hex6812b463f

27936900671 has 8 divisors (see below), whose sum is σ = 28183613040. Its totient is φ = 27690808768.

The previous prime is 27936900659. The next prime is 27936900701. The reversal of 27936900671 is 17600963972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27936900671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27936900601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64436 + ... + 245001.

It is an arithmetic number, because the mean of its divisors is an integer number (3522951630).

Almost surely, 227936900671 is an apocalyptic number.

27936900671 is a deficient number, since it is larger than the sum of its proper divisors (246712369).

27936900671 is a wasteful number, since it uses less digits than its factorization.

27936900671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310233.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 27936900671 in words is "twenty-seven billion, nine hundred thirty-six million, nine hundred thousand, six hundred seventy-one".

Divisors: 1 137 659 90283 309437 42392869 203918983 27936900671