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253860051 = 315723433
BaseRepresentation
bin11110010000110…
…01100011010011
3122200200102112010
433020121203103
51004442010201
641105034003
76201526524
oct1710314323
9580612463
10253860051
1112032a8a5
1271025903
1340794663
1425a0284b
1517447bd6
hexf2198d3

253860051 has 12 divisors (see below), whose sum is σ = 340748952. Its totient is φ = 168113088.

The previous prime is 253860043. The next prime is 253860077. The reversal of 253860051 is 150068352.

253860051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253860051 - 23 = 253860043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253862051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72231 + ... + 75663.

It is an arithmetic number, because the mean of its divisors is an integer number (28395746).

Almost surely, 2253860051 is an apocalyptic number.

253860051 is a deficient number, since it is larger than the sum of its proper divisors (86888901).

253860051 is an equidigital number, since it uses as much as digits as its factorization.

253860051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 253860051 is about 15932.9862549366. The cubic root of 253860051 is about 633.1862193544.

The spelling of 253860051 in words is "two hundred fifty-three million, eight hundred sixty thousand, fifty-one".

Divisors: 1 3 157 471 3433 10299 24649 73947 538981 1616943 84620017 253860051