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6811379995 = 57227801551
BaseRepresentation
bin1100101011111110…
…10110100100011011
3122120200210221210011
412111333112210123
5102422203124440
63043515302351
7330535526500
oct62577264433
918520727704
106811379995
112985934672
1213a114a9b7
13847204684
1448889b4a7
1529ceab9ea
hex195fd691b

6811379995 has 12 divisors (see below), whose sum is σ = 9508130784. Its totient is φ = 4670660400.

The previous prime is 6811379983. The next prime is 6811380019. The reversal of 6811379995 is 5999731186.

It is not a de Polignac number, because 6811379995 - 25 = 6811379963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13900531 + ... + 13901020.

It is an arithmetic number, because the mean of its divisors is an integer number (792344232).

Almost surely, 26811379995 is an apocalyptic number.

6811379995 is a deficient number, since it is larger than the sum of its proper divisors (2696750789).

6811379995 is a wasteful number, since it uses less digits than its factorization.

6811379995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27801570 (or 27801563 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 58.

The square root of 6811379995 is about 82531.0850225538. The cubic root of 6811379995 is about 1895.5927390672.

The spelling of 6811379995 in words is "six billion, eight hundred eleven million, three hundred seventy-nine thousand, nine hundred ninety-five".

Divisors: 1 5 7 35 49 245 27801551 139007755 194610857 973054285 1362275999 6811379995