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52392113 = 178533613
BaseRepresentation
bin1100011111011…
…1000010110001
310122120210110122
43013313002301
5101403021423
65110540025
71204216454
oct307670261
9118523418
1052392113
1127634a74
1215667615
13ab15167
146d5b49b
1548ed8c8
hex31f70b1

52392113 has 8 divisors (see below), whose sum is σ = 55554408. Its totient is φ = 49238784.

The previous prime is 52392061. The next prime is 52392121. The reversal of 52392113 is 31129325.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 51739249 = 808^2 + 7193^2 .

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 52392113 - 218 = 52129969 is a prime.

It is a super-3 number, since 3×523921133 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52392133) 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, 12695 + ... + 16307.

It is an arithmetic number, because the mean of its divisors is an integer number (6944301).

Almost surely, 252392113 is an apocalyptic number.

It is an amenable number.

52392113 is a deficient number, since it is larger than the sum of its proper divisors (3162295).

52392113 is a wasteful number, since it uses less digits than its factorization.

52392113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483.

The product of its digits is 1620, while the sum is 26.

The square root of 52392113 is about 7238.2396340547. The cubic root of 52392113 is about 374.1869507728.

The spelling of 52392113 in words is "fifty-two million, three hundred ninety-two thousand, one hundred thirteen".

Divisors: 1 17 853 3613 14501 61421 3081889 52392113