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52907893 = 1713722717
BaseRepresentation
bin1100100111010…
…0111101110101
310200112222222121
43021310331311
5102021023033
65125555541
71211465263
oct311647565
9120488877
1052907893
1127957535
1215875bb1
13ac65b5c
147053433
1549a162d
hex3274f75

52907893 has 8 divisors (see below), whose sum is σ = 56431512. Its totient is φ = 49430016.

The previous prime is 52907867. The next prime is 52907903. The reversal of 52907893 is 39870925.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12229009 + 40678884 = 3497^2 + 6378^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-52907893 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 (52907093) 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, 9030 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (7053939).

Almost surely, 252907893 is an apocalyptic number.

It is an amenable number.

52907893 is a deficient number, since it is larger than the sum of its proper divisors (3523619).

52907893 is a wasteful number, since it uses less digits than its factorization.

52907893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22871.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 52907893 is about 7273.7812037482. The cubic root of 52907893 is about 375.4108516307.

The spelling of 52907893 in words is "fifty-two million, nine hundred seven thousand, eight hundred ninety-three".

Divisors: 1 17 137 2329 22717 386189 3112229 52907893