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52029631 = 64380917
BaseRepresentation
bin1100011001111…
…0100010111111
310121220101020101
43012132202333
5101304422011
65055101531
71201146613
oct306364277
9117811211
1052029631
11274076a5
12155118a7
13aa19184
146ca5343
15487b2c1
hex319e8bf

52029631 has 4 divisors (see below), whose sum is σ = 52111192. Its totient is φ = 51948072.

The previous prime is 52029589. The next prime is 52029641. The reversal of 52029631 is 13692025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52029631 - 29 = 52029119 is a prime.

It is a super-2 number, since 2×520296312 = 5414165003992322, 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 52029631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52029641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39816 + ... + 41101.

It is an arithmetic number, because the mean of its divisors is an integer number (13027798).

Almost surely, 252029631 is an apocalyptic number.

52029631 is a deficient number, since it is larger than the sum of its proper divisors (81561).

52029631 is an equidigital number, since it uses as much as digits as its factorization.

52029631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81560.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 52029631 is about 7213.1567985176. The cubic root of 52029631 is about 373.3219983981.

The spelling of 52029631 in words is "fifty-two million, twenty-nine thousand, six hundred thirty-one".

Divisors: 1 643 80917 52029631