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206152904 = 23473491571
BaseRepresentation
bin11000100100110…
…10010011001000
3112100220122121202
430102122103020
5410233343104
632242323332
75052161606
oct1422322310
9470818552
10206152904
11a6405801
1259059548
133392ca89
141d544876
151317251e
hexc49a4c8

206152904 has 32 divisors (see below), whose sum is σ = 396144000. Its totient is φ = 100530240.

The previous prime is 206152867. The next prime is 206152913. The reversal of 206152904 is 409251602.

It is a happy 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 in 7 ways as a sum of consecutive naturals, for example, 130439 + ... + 132009.

It is an arithmetic number, because the mean of its divisors is an integer number (12379500).

Almost surely, 2206152904 is an apocalyptic number.

It is an amenable number.

206152904 is a deficient number, since it is larger than the sum of its proper divisors (189991096).

206152904 is a wasteful number, since it uses less digits than its factorization.

206152904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 206152904 is about 14358.0257695827. The cubic root of 206152904 is about 590.7401455150.

The spelling of 206152904 in words is "two hundred six million, one hundred fifty-two thousand, nine hundred four".

Divisors: 1 2 4 8 47 94 188 349 376 698 1396 1571 2792 3142 6284 12568 16403 32806 65612 73837 131224 147674 295348 548279 590696 1096558 2193116 4386232 25769113 51538226 103076452 206152904