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252240570 = 23252802673
BaseRepresentation
bin11110000100011…
…10001010111010
3122120122011000100
433002032022322
51004033144240
641010220230
76152003151
oct1702161272
9576564010
10252240570
1111a42408a
1270584676
134034849a
1425700598
1517227e30
hexf08e2ba

252240570 has 24 divisors (see below), whose sum is σ = 655825716. Its totient is φ = 67264128.

The previous prime is 252240559. The next prime is 252240607. The reversal of 252240570 is 75042252.

252240570 is a `hidden beast` number, since 2 + 52 + 2 + 40 + 570 = 666.

252240570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 238424481 + 13816089 = 15441^2 + 3717^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401247 + ... + 1401426.

Almost surely, 2252240570 is an apocalyptic number.

252240570 is an abundant number, since it is smaller than the sum of its proper divisors (403585146).

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

252240570 is a wasteful number, since it uses less digits than its factorization.

252240570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802686 (or 2802683 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 252240570 is about 15882.0833016327. The cubic root of 252240570 is about 631.8368914256.

The spelling of 252240570 in words is "two hundred fifty-two million, two hundred forty thousand, five hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2802673 5605346 8408019 14013365 16816038 25224057 28026730 42040095 50448114 84080190 126120285 252240570