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52326972 = 2234161503
BaseRepresentation
bin1100011110011…
…1001000111100
310122110111010000
43013213020330
5101343430342
65105314300
71203525525
oct307471074
9118414100
1052326972
11275a0035
1215635990
13aac1609
146d4184c
1548d944c
hex31e723c

52326972 has 30 divisors (see below), whose sum is σ = 136793888. Its totient is φ = 17442216.

The previous prime is 52326971. The next prime is 52326973. The reversal of 52326972 is 27962325.

52326972 is a `hidden beast` number, since 523 + 2 + 69 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (52326971) and next prime (52326973).

It is a super-2 number, since 2×523269722 = 5476223997377568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52326971) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 80428 + ... + 81075.

Almost surely, 252326972 is an apocalyptic number.

It is an amenable number.

52326972 is an abundant number, since it is smaller than the sum of its proper divisors (84466916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52326972 is a wasteful number, since it uses less digits than its factorization.

52326972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161519 (or 161508 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 52326972 is about 7233.7384525569. The cubic root of 52326972 is about 374.0318064212.

It can be divided in two parts, 523 and 26972, that added together give a triangular number (27495 = T234).

The spelling of 52326972 in words is "fifty-two million, three hundred twenty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 161503 323006 484509 646012 969018 1453527 1938036 2907054 4360581 5814108 8721162 13081743 17442324 26163486 52326972