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253762930 = 25179141767
BaseRepresentation
bin11110010000000…
…01110101110010
3122200111111022001
433020001311302
51004430403210
641103004214
76200643421
oct1710016562
9580444261
10253762930
11120273933
1270b9966a
134075c3a5
14259b92b8
151742903a
hexf201d72

253762930 has 16 divisors (see below), whose sum is σ = 459328320. Its totient is φ = 100937392.

The previous prime is 253762921. The next prime is 253762973. The reversal of 253762930 is 39267352.

It is a self number, because there is not a number n which added to its sum of digits gives 253762930.

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, 69094 + ... + 72673.

It is an arithmetic number, because the mean of its divisors is an integer number (28708020).

Almost surely, 2253762930 is an apocalyptic number.

253762930 is a deficient number, since it is larger than the sum of its proper divisors (205565390).

253762930 is a wasteful number, since it uses less digits than its factorization.

253762930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141953.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 253762930 is about 15929.9381668605. The cubic root of 253762930 is about 633.1054615740.

The spelling of 253762930 in words is "two hundred fifty-three million, seven hundred sixty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 179 358 895 1790 141767 283534 708835 1417670 25376293 50752586 126881465 253762930