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6390875897 = 73136318111
BaseRepresentation
bin1011111001110110…
…10000011011111001
3121111101120010121022
411330323100123321
5101042031012042
62534054352225
7314241356150
oct57473203371
917441503538
106390875897
11278a53471a
1212a435b675
137ab064393
14448aba597
152760e7cd2
hex17ced06f9

6390875897 has 16 divisors (see below), whose sum is σ = 7542472704. Its totient is φ = 5299074000.

The previous prime is 6390875863. The next prime is 6390875923. The reversal of 6390875897 is 7985780936.

It is a cyclic number.

It is not a de Polignac number, because 6390875897 - 26 = 6390875833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6390875857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783872 + ... + 791982.

It is an arithmetic number, because the mean of its divisors is an integer number (471404544).

Almost surely, 26390875897 is an apocalyptic number.

It is an amenable number.

6390875897 is a deficient number, since it is larger than the sum of its proper divisors (1151596807).

6390875897 is a wasteful number, since it uses less digits than its factorization.

6390875897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The square root of 6390875897 is about 79942.9540172241. The cubic root of 6390875897 is about 1855.7528151948.

The spelling of 6390875897 in words is "six billion, three hundred ninety million, eight hundred seventy-five thousand, eight hundred ninety-seven".

Divisors: 1 7 31 217 3631 8111 25417 56777 112561 251441 787927 1760087 29451041 206157287 912982271 6390875897