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252287793 = 32373791999
BaseRepresentation
bin11110000100110…
…01101100110001
3122120201112210100
433002121230301
51004041202133
641011223013
76152260632
oct1702315461
9576645710
10252287793
1111a45660a
12705a7a69
1340363b24
1425713889
1517236e13
hexf099b31

252287793 has 24 divisors (see below), whose sum is σ = 375440000. Its totient is φ = 163132704.

The previous prime is 252287773. The next prime is 252287807. The reversal of 252287793 is 397782252.

252287793 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 252287793 - 26 = 252287729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252287743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125208 + ... + 127206.

Almost surely, 2252287793 is an apocalyptic number.

It is an amenable number.

252287793 is a deficient number, since it is larger than the sum of its proper divisors (123152207).

252287793 is a wasteful number, since it uses less digits than its factorization.

252287793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2418 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 252287793 is about 15883.5699072973. The cubic root of 252287793 is about 631.8763185642.

The spelling of 252287793 in words is "two hundred fifty-two million, two hundred eighty-seven thousand, seven hundred ninety-three".

Divisors: 1 3 9 37 111 333 379 1137 1999 3411 5997 14023 17991 42069 73963 126207 221889 665667 757621 2272863 6818589 28031977 84095931 252287793