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6808870564 = 221702217641
BaseRepresentation
bin1100101011101011…
…10001111010100100
3122120112002110111021
412111311301322210
5102421032324224
63043345420524
7330505305406
oct62565617244
918515073437
106808870564
112984480261
1213a033a744
138468363c2
14488406b76
1529cb631e4
hex195d71ea4

6808870564 has 6 divisors (see below), whose sum is σ = 11915523494. Its totient is φ = 3404435280.

The previous prime is 6808870559. The next prime is 6808870643. The reversal of 6808870564 is 4650788086.

It can be written as a sum of positive squares in only one way, i.e., 3935052900 + 2873817664 = 62730^2 + 53608^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851108817 + ... + 851108824.

Almost surely, 26808870564 is an apocalyptic number.

It is an amenable number.

6808870564 is a deficient number, since it is larger than the sum of its proper divisors (5106652930).

6808870564 is a wasteful number, since it uses less digits than its factorization.

6808870564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702217645 (or 1702217643 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The square root of 6808870564 is about 82515.8806776005. The cubic root of 6808870564 is about 1895.3599206821.

The spelling of 6808870564 in words is "six billion, eight hundred eight million, eight hundred seventy thousand, five hundred sixty-four".

Divisors: 1 2 4 1702217641 3404435282 6808870564