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52268661 = 3210953281
BaseRepresentation
bin1100011101100…
…0111001110101
310122100112010100
43013120321311
5101340044121
65104144313
71203163524
oct307307165
9118315110
1052268661
1127560245
1215608099
13aaa0c03
146d284bb
1548c7026
hex31d8e75

52268661 has 12 divisors (see below), whose sum is σ = 76193260. Its totient is φ = 34525440.

The previous prime is 52268647. The next prime is 52268687. The reversal of 52268661 is 16686225.

It can be written as a sum of positive squares in 2 ways, for example, as 32421636 + 19847025 = 5694^2 + 4455^2 .

It is not a de Polignac number, because 52268661 - 215 = 52235893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52268621) 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, 25660 + ... + 27621.

Almost surely, 252268661 is an apocalyptic number.

It is an amenable number.

52268661 is a deficient number, since it is larger than the sum of its proper divisors (23924599).

52268661 is a wasteful number, since it uses less digits than its factorization.

52268661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53396 (or 53393 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 52268661 is about 7229.7068405296. The cubic root of 52268661 is about 373.8928196214.

The spelling of 52268661 in words is "fifty-two million, two hundred sixty-eight thousand, six hundred sixty-one".

Divisors: 1 3 9 109 327 981 53281 159843 479529 5807629 17422887 52268661