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204252970 = 2520539949
BaseRepresentation
bin11000010110010…
…10011100101010
3112020100010101211
430023022130222
5404242043340
632133503334
75030056465
oct1413123452
9466303354
10204252970
11a5328309
12584a1b4a
133341605c
141d1ac2dc
1512de95ea
hexc2ca72a

204252970 has 16 divisors (see below), whose sum is σ = 367871400. Its totient is φ = 81653184.

The previous prime is 204252947. The next prime is 204252989. The reversal of 204252970 is 79252402.

It can be written as a sum of positive squares in 4 ways, for example, as 155825289 + 48427681 = 12483^2 + 6959^2 .

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 7 ways as a sum of consecutive naturals, for example, 15556 + ... + 25504.

Almost surely, 2204252970 is an apocalyptic number.

204252970 is a deficient number, since it is larger than the sum of its proper divisors (163618430).

204252970 is a wasteful number, since it uses less digits than its factorization.

204252970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12009.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 204252970 is about 14291.7098347259. The cubic root of 204252970 is about 588.9197604295.

The spelling of 204252970 in words is "two hundred four million, two hundred fifty-two thousand, nine hundred seventy".

Divisors: 1 2 5 10 2053 4106 9949 10265 19898 20530 49745 99490 20425297 40850594 102126485 204252970