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806900662865 = 51116638821961
BaseRepresentation
bin10111011110111110000…
…01110000001001010001
32212010202021221201211202
423233133001300021101
5101210013032202430
61414403545320545
7112203515316443
oct13573701601121
92763667851752
10806900662865
1129122842a960
12110471496155
135b12381173b
142b0a8a24493
1515ec9037d45
hexbbdf070251

806900662865 has 16 divisors (see below), whose sum is σ = 1056941623296. Its totient is φ = 586483900800.

The previous prime is 806900662831. The next prime is 806900662889. The reversal of 806900662865 is 568266009608.

806900662865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806900662865 - 210 = 806900661841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 806900662865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4319516 + ... + 4502445.

It is an arithmetic number, because the mean of its divisors is an integer number (66058851456).

Almost surely, 2806900662865 is an apocalyptic number.

It is an amenable number.

806900662865 is a deficient number, since it is larger than the sum of its proper divisors (250040960431).

806900662865 is a wasteful number, since it uses less digits than its factorization.

806900662865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823640.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 806900662865 in words is "eight hundred six billion, nine hundred million, six hundred sixty-two thousand, eight hundred sixty-five".

Divisors: 1 5 11 55 1663 8315 18293 91465 8821961 44109805 97041571 485207855 14670921143 73354605715 161380132573 806900662865