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52907831 = 277409467
BaseRepresentation
bin1100100111010…
…0111100110111
310200112222220022
43021310330313
5102021022311
65125555355
71211465144
oct311647467
9120488808
1052907831
1127957489
1215875b5b
13ac65b12
1470533cb
1549a15db
hex3274f37

52907831 has 8 divisors (see below), whose sum is σ = 53342640. Its totient is φ = 52475328.

The previous prime is 52907773. The next prime is 52907857. The reversal of 52907831 is 13870925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52907831 is a prime.

It is a super-2 number, since 2×529078312 = 5598477162249122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52907791 and 52907800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52901831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113060 + ... + 113526.

It is an arithmetic number, because the mean of its divisors is an integer number (6667830).

Almost surely, 252907831 is an apocalyptic number.

52907831 is a deficient number, since it is larger than the sum of its proper divisors (434809).

52907831 is a wasteful number, since it uses less digits than its factorization.

52907831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 52907831 is about 7273.7769418645. The cubic root of 52907831 is about 375.4107049892.

The spelling of 52907831 in words is "fifty-two million, nine hundred seven thousand, eight hundred thirty-one".

Divisors: 1 277 409 467 113293 129359 191003 52907831