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53392031 = 711693403
BaseRepresentation
bin1100101110101…
…1001010011111
310201110121002122
43023223022133
5102132021111
65144213155
71215552620
oct313531237
9121417078
1053392031
1128158250
1215a6a1bb
13b0a5324
14713ba47
154a49cdb
hex32eb29f

53392031 has 8 divisors (see below), whose sum is σ = 66566784. Its totient is φ = 41604120.

The previous prime is 53392021. The next prime is 53392043. The reversal of 53392031 is 13029335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53392031 is a prime.

It is a super-2 number, since 2×533920312 = 5701417948609922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53392021) 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, 346625 + ... + 346778.

It is an arithmetic number, because the mean of its divisors is an integer number (8320848).

Almost surely, 253392031 is an apocalyptic number.

53392031 is a deficient number, since it is larger than the sum of its proper divisors (13174753).

53392031 is a wasteful number, since it uses less digits than its factorization.

53392031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693421.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 53392031 is about 7306.9850827821. The cubic root of 53392031 is about 376.5524524709.

The spelling of 53392031 in words is "fifty-three million, three hundred ninety-two thousand, thirty-one".

Divisors: 1 7 11 77 693403 4853821 7627433 53392031