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52812631 = 476411753
BaseRepresentation
bin1100100101110…
…1101101010111
310200101011022101
43021131231113
5102010001011
65123542531
71210620454
oct311355527
9120334271
1052812631
11278a1a03
121582aa47
13ac316a1
14702a82b
1549832c1
hex325db57

52812631 has 8 divisors (see below), whose sum is σ = 54051264. Its totient is φ = 51578880.

The previous prime is 52812629. The next prime is 52812637. The reversal of 52812631 is 13621825.

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 52812631 - 21 = 52812629 is a prime.

It is a super-2 number, since 2×528126312 = 5578347986284322, which contains 22 as substring.

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 52812631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52812637) 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, 29251 + ... + 31003.

It is an arithmetic number, because the mean of its divisors is an integer number (6756408).

Almost surely, 252812631 is an apocalyptic number.

52812631 is a deficient number, since it is larger than the sum of its proper divisors (1238633).

52812631 is a wasteful number, since it uses less digits than its factorization.

52812631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its digits is 2880, while the sum is 28.

The square root of 52812631 is about 7267.2299399427. The cubic root of 52812631 is about 375.1854040229.

The spelling of 52812631 in words is "fifty-two million, eight hundred twelve thousand, six hundred thirty-one".

Divisors: 1 47 641 1753 30127 82391 1123673 52812631