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52269288 = 23317128111
BaseRepresentation
bin1100011101100…
…1000011101000
310122100112222120
43013121003220
5101340104123
65104151240
71203165411
oct307310350
9118315876
1052269288
1127560765
1215608520
13aaa1296
146d28808
1548c72e3
hex31d90e8

52269288 has 32 divisors (see below), whose sum is σ = 138360960. Its totient is φ = 16398080.

The previous prime is 52269257. The next prime is 52269293. The reversal of 52269288 is 88296225.

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, 63648 + ... + 64463.

It is an arithmetic number, because the mean of its divisors is an integer number (4323780).

Almost surely, 252269288 is an apocalyptic number.

It is an amenable number.

52269288 is an abundant number, since it is smaller than the sum of its proper divisors (86091672).

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

52269288 is a wasteful number, since it uses less digits than its factorization.

52269288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128137 (or 128133 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 52269288 is about 7229.7502031536. The cubic root of 52269288 is about 373.8943146528.

The spelling of 52269288 in words is "fifty-two million, two hundred sixty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 128111 256222 384333 512444 768666 1024888 1537332 2177887 3074664 4355774 6533661 8711548 13067322 17423096 26134644 52269288