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808665007 = 37127172093
BaseRepresentation
bin110000001100110…
…011111110101111
32002100122102211211
4300030303332233
53124004240012
6212124255251
726016352633
oct6014637657
92070572754
10808665007
11385519a97
121a69a1527
13cb6c7c07
1479582dc3
154aed96a7
hex30333faf

808665007 has 8 divisors (see below), whose sum is σ = 837065216. Its totient is φ = 780609312.

The previous prime is 808664963. The next prime is 808665059. The reversal of 808665007 is 700566808.

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 808665007 - 215 = 808632239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808665607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81348 + ... + 90745.

It is an arithmetic number, because the mean of its divisors is an integer number (104633152).

Almost surely, 2808665007 is an apocalyptic number.

808665007 is a deficient number, since it is larger than the sum of its proper divisors (28400209).

808665007 is a wasteful number, since it uses less digits than its factorization.

808665007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172257.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 808665007 is about 28437.0358335745. The cubic root of 808665007 is about 931.6573549177.

The spelling of 808665007 in words is "eight hundred eight million, six hundred sixty-five thousand, seven".

Divisors: 1 37 127 4699 172093 6367441 21855811 808665007