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2656881485 = 51319402863
BaseRepresentation
bin1001111001011100…
…1100101101001101
320212011101120012222
42132113030231031
520420130201420
61115350105125
7122561056106
oct23627145515
96764346188
102656881485
111143816425
1262194b1a5
1333459a62b
141b2c0b3ad
151083b9225
hex9e5ccb4d

2656881485 has 8 divisors (see below), whose sum is σ = 3190682880. Its totient is φ = 2123888464.

The previous prime is 2656881439. The next prime is 2656881503. The reversal of 2656881485 is 5841886562.

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 2656881485 - 26 = 2656881421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194837 + ... + 208026.

It is an arithmetic number, because the mean of its divisors is an integer number (398835360).

Almost surely, 22656881485 is an apocalyptic number.

It is an amenable number.

2656881485 is a deficient number, since it is larger than the sum of its proper divisors (533801395).

2656881485 is a wasteful number, since it uses less digits than its factorization.

2656881485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404187.

The product of its digits is 3686400, while the sum is 53.

The square root of 2656881485 is about 51544.9462605210. The cubic root of 2656881485 is about 1385.0243032918.

The spelling of 2656881485 in words is "two billion, six hundred fifty-six million, eight hundred eighty-one thousand, four hundred eighty-five".

Divisors: 1 5 1319 6595 402863 2014315 531376297 2656881485