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52388113 = 1935212
BaseRepresentation
bin1100011111011…
…0000100010001
310122120120222111
43013312010101
5101402404423
65110505321
71204202011
oct307660421
9118516874
1052388113
1127631a68
1215665241
13ab133ab
146d59c41
1548ec60d
hex31f6111

52388113 has 6 divisors (see below), whose sum is σ = 52760822. Its totient is φ = 52016640.

The previous prime is 52388099. The next prime is 52388117. The reversal of 52388113 is 31188325.

It can be written as a sum of positive squares in 3 ways, for example, as 71824 + 52316289 = 268^2 + 7233^2 .

It is not a de Polignac number, because 52388113 - 225 = 18833681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52388117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100293 + ... + 100813.

Almost surely, 252388113 is an apocalyptic number.

It is an amenable number.

52388113 is a deficient number, since it is larger than the sum of its proper divisors (372709).

52388113 is an frugal number, since it uses more digits than its factorization.

52388113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 714 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 52388113 is about 7237.9633185033. The cubic root of 52388113 is about 374.1774278007.

The spelling of 52388113 in words is "fifty-two million, three hundred eighty-eight thousand, one hundred thirteen".

Divisors: 1 193 521 100553 271441 52388113