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253032724 = 22716355441
BaseRepresentation
bin11110001010011…
…11100100010100
3122122010101122101
433011033210110
51004234021344
641035211444
76161512510
oct1705174424
9578111571
10253032724
1111a91525a
12708a6b84
1340564c09
1425869140
15173329d4
hexf14f914

253032724 has 24 divisors (see below), whose sum is σ = 509179328. Its totient is φ = 107775360.

The previous prime is 253032701. The next prime is 253032761. The reversal of 253032724 is 427230352.

253032724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 253032692 and 253032701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23157 + ... + 32284.

Almost surely, 2253032724 is an apocalyptic number.

It is an amenable number.

253032724 is an abundant number, since it is smaller than the sum of its proper divisors (256146604).

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

253032724 is a wasteful number, since it uses less digits than its factorization.

253032724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55615 (or 55613 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 253032724 is about 15907.0023574525. The cubic root of 253032724 is about 632.4976218880.

The spelling of 253032724 in words is "two hundred fifty-three million, thirty-two thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 14 28 163 326 652 1141 2282 4564 55441 110882 221764 388087 776174 1552348 9036883 18073766 36147532 63258181 126516362 253032724