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52356331 = 137382163
BaseRepresentation
bin1100011110111…
…0010011101011
310122111222101101
43013232103223
5101400400311
65110102231
71204010236
oct307562353
9118458341
1052356331
11276100a5
121564a977
13ab01aa1
146d4c41d
1548e2ec1
hex31ee4eb

52356331 has 4 divisors (see below), whose sum is σ = 52738632. Its totient is φ = 51974032.

The previous prime is 52356319. The next prime is 52356371. The reversal of 52356331 is 13365325.

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 52356331 - 211 = 52354283 is a prime.

It is a super-2 number, since 2×523563312 = 5482370791563122, 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 52356331.

It is not an unprimeable number, because it can be changed into a prime (52356371) 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, 190945 + ... + 191218.

It is an arithmetic number, because the mean of its divisors is an integer number (13184658).

Almost surely, 252356331 is an apocalyptic number.

52356331 is a deficient number, since it is larger than the sum of its proper divisors (382301).

52356331 is a wasteful number, since it uses less digits than its factorization.

52356331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382300.

The product of its digits is 8100, while the sum is 28.

The square root of 52356331 is about 7235.7674782983. The cubic root of 52356331 is about 374.1017457933.

The spelling of 52356331 in words is "fifty-two million, three hundred fifty-six thousand, three hundred thirty-one".

Divisors: 1 137 382163 52356331