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307904852 = 2276976213
BaseRepresentation
bin10010010110100…
…100000101010100
3210110101012001102
4102112210011110
51112310423402
650315245232
710426101533
oct2226440524
9713335042
10307904852
11148893522
1287149818
134ba37b28
142cc7031a
151c071102
hex125a4154

307904852 has 6 divisors (see below), whose sum is σ = 538833498. Its totient is φ = 153952424.

The previous prime is 307904827. The next prime is 307904873. The reversal of 307904852 is 258409703.

It can be written as a sum of positive squares in only one way, i.e., 176252176 + 131652676 = 13276^2 + 11474^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38488103 + ... + 38488110.

It is an arithmetic number, because the mean of its divisors is an integer number (89805583).

Almost surely, 2307904852 is an apocalyptic number.

It is an amenable number.

307904852 is a deficient number, since it is larger than the sum of its proper divisors (230928646).

307904852 is a wasteful number, since it uses less digits than its factorization.

307904852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76976217 (or 76976215 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 307904852 is about 17547.2177851647. The cubic root of 307904852 is about 675.2617929201.

The spelling of 307904852 in words is "three hundred seven million, nine hundred four thousand, eight hundred fifty-two".

Divisors: 1 2 4 76976213 153952426 307904852