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52068361 = 371407253
BaseRepresentation
bin1100011010100…
…0000000001001
310121222100100211
43012220000021
5101312141421
65100001121
71201400542
oct306500011
9117870324
1052068361
1127433804
12155301a1
13aa309a7
146cb54c9
1548879e1
hex31a8009

52068361 has 4 divisors (see below), whose sum is σ = 53475652. Its totient is φ = 50661072.

The previous prime is 52068323. The next prime is 52068371. The reversal of 52068361 is 16386025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32319225 + 19749136 = 5685^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 52068361 - 29 = 52067849 is a prime.

It is a super-2 number, since 2×520683612 = 5422228434452642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52068371) 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, 703590 + ... + 703663.

It is an arithmetic number, because the mean of its divisors is an integer number (13368913).

Almost surely, 252068361 is an apocalyptic number.

It is an amenable number.

52068361 is a deficient number, since it is larger than the sum of its proper divisors (1407291).

52068361 is a wasteful number, since it uses less digits than its factorization.

52068361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407290.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52068361 is about 7215.8409766291. The cubic root of 52068361 is about 373.4146070045.

The spelling of 52068361 in words is "fifty-two million, sixty-eight thousand, three hundred sixty-one".

Divisors: 1 37 1407253 52068361