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204070688 = 2537172357
BaseRepresentation
bin11000010100111…
…01111100100000
3112012222212100122
430022131330200
5404220230223
632125535412
75025400163
oct1412357440
9465885318
10204070688
11a5213368
1258414568
13333810b3
141d161ada
1512db05c8
hexc29df20

204070688 has 24 divisors (see below), whose sum is σ = 412625052. Its totient is φ = 99277056.

The previous prime is 204070661. The next prime is 204070729. The reversal of 204070688 is 886070402.

It can be written as a sum of positive squares in 2 ways, for example, as 149132944 + 54937744 = 12212^2 + 7412^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84995 + ... + 87362.

Almost surely, 2204070688 is an apocalyptic number.

It is an amenable number.

204070688 is an abundant number, since it is smaller than the sum of its proper divisors (208554364).

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

204070688 is a wasteful number, since it uses less digits than its factorization.

204070688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172404 (or 172396 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 204070688 is about 14285.3312177212. The cubic root of 204070688 is about 588.7445178995.

The spelling of 204070688 in words is "two hundred four million, seventy thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 172357 344714 689428 1378856 2757712 5515424 6377209 12754418 25508836 51017672 102035344 204070688