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27508920151 = 31297892
BaseRepresentation
bin11001100111101010…
…001100111101010111
32122000010212221020111
4121213222030331113
5422314240421101
620345403343451
71662460651246
oct314752147527
978003787214
1027508920151
1110737082959
1253b8821b87
132795269b5b
14148d67a95d
15ab00b1251
hex667a8cf57

27508920151 has 6 divisors (see below), whose sum is σ = 28397257952. Its totient is φ = 26620641960.

The previous prime is 27508920067. The next prime is 27508920211. The reversal of 27508920151 is 15102980572.

It is not a de Polignac number, because 27508920151 - 211 = 27508918103 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 (27508924151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 908565 + ... + 938353.

Almost surely, 227508920151 is an apocalyptic number.

27508920151 is a deficient number, since it is larger than the sum of its proper divisors (888337801).

27508920151 is an frugal number, since it uses more digits than its factorization.

27508920151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59609 (or 29820 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 27508920151 in words is "twenty-seven billion, five hundred eight million, nine hundred twenty thousand, one hundred fifty-one".

Divisors: 1 31 29789 923459 887384521 27508920151