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52683391 = 1715719739
BaseRepresentation
bin1100100011111…
…0001001111111
310200010121000201
43020332021333
5101441332031
65121104331
71206541615
oct310761177
9120117021
1052683391
11278138a2
12157880a7
13abb7907
146dd56b5
154959d61
hex323e27f

52683391 has 8 divisors (see below), whose sum is σ = 56140560. Its totient is φ = 49266048.

The previous prime is 52683377. The next prime is 52683427. The reversal of 52683391 is 19338625.

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

It is a cyclic number.

It is not a de Polignac number, because 52683391 - 217 = 52552319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52683391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52683311) 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, 7201 + ... + 12538.

It is an arithmetic number, because the mean of its divisors is an integer number (7017570).

Almost surely, 252683391 is an apocalyptic number.

52683391 is a deficient number, since it is larger than the sum of its proper divisors (3457169).

52683391 is a wasteful number, since it uses less digits than its factorization.

52683391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913.

The product of its digits is 38880, while the sum is 37.

The square root of 52683391 is about 7258.3325220053. The cubic root of 52683391 is about 374.8791100696.

The spelling of 52683391 in words is "fifty-two million, six hundred eighty-three thousand, three hundred ninety-one".

Divisors: 1 17 157 2669 19739 335563 3099023 52683391