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253051144 = 2359952807
BaseRepresentation
bin11110001010101…
…00000100001000
3122122011022220121
433011110010020
51004240114034
641035433024
76161620303
oct1705240410
9578138817
10253051144
1111a928085
12708b5774
1340570408
1425871b3a
15173381b4
hexf154108

253051144 has 16 divisors (see below), whose sum is σ = 475272000. Its totient is φ = 126311952.

The previous prime is 253051133. The next prime is 253051153. The reversal of 253051144 is 441150352.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21612 + ... + 31195.

It is an arithmetic number, because the mean of its divisors is an integer number (29704500).

Almost surely, 2253051144 is an apocalyptic number.

It is an amenable number.

253051144 is a deficient number, since it is larger than the sum of its proper divisors (222220856).

253051144 is a wasteful number, since it uses less digits than its factorization.

253051144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53412 (or 53408 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 253051144 is about 15907.5813372115. The cubic root of 253051144 is about 632.5129694727.

The spelling of 253051144 in words is "two hundred fifty-three million, fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 599 1198 2396 4792 52807 105614 211228 422456 31631393 63262786 126525572 253051144