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307842808 = 23713422861
BaseRepresentation
bin10010010110010…
…100111011111000
3210110021000221111
4102112110323320
51112301432213
650314050104
710425422620
oct2226247370
9713230844
10307842808
11148850949
1287119934
134ba15810
142cc55880
151c05ca3d
hex12594ef8

307842808 has 32 divisors (see below), whose sum is σ = 710408160. Its totient is φ = 121783680.

The previous prime is 307842797. The next prime is 307842811. The reversal of 307842808 is 808248703.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210703 + ... + 212158.

It is an arithmetic number, because the mean of its divisors is an integer number (22200255).

Almost surely, 2307842808 is an apocalyptic number.

It is an amenable number.

307842808 is an abundant number, since it is smaller than the sum of its proper divisors (402565352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

307842808 is a wasteful number, since it uses less digits than its factorization.

307842808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422887 (or 422883 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 307842808 is about 17545.4497804986. The cubic root of 307842808 is about 675.2164339325.

The spelling of 307842808 in words is "three hundred seven million, eight hundred forty-two thousand, eight hundred eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 422861 845722 1691444 2960027 3382888 5497193 5920054 10994386 11840108 21988772 23680216 38480351 43977544 76960702 153921404 307842808