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52972312 = 23232231291
BaseRepresentation
bin1100101000010…
…0101100011000
310200200021100111
43022010230120
5102030103222
65131214104
71212154141
oct312045430
9120607314
1052972312
11279a0978
12158a7334
13ac89283
14706cac8
1549b5777
hex3284b18

52972312 has 32 divisors (see below), whose sum is σ = 104186880. Its totient is φ = 25201440.

The previous prime is 52972307. The next prime is 52972313. The reversal of 52972312 is 21327925.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52972313) 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, 40387 + ... + 41677.

It is an arithmetic number, because the mean of its divisors is an integer number (3255840).

Almost surely, 252972312 is an apocalyptic number.

It is an amenable number.

52972312 is a deficient number, since it is larger than the sum of its proper divisors (51214568).

52972312 is a wasteful number, since it uses less digits than its factorization.

52972312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1539 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 52972312 is about 7278.2080212096. The cubic root of 52972312 is about 375.5631526823.

The spelling of 52972312 in words is "fifty-two million, nine hundred seventy-two thousand, three hundred twelve".

Divisors: 1 2 4 8 23 46 92 184 223 446 892 1291 1784 2582 5129 5164 10258 10328 20516 29693 41032 59386 118772 237544 287893 575786 1151572 2303144 6621539 13243078 26486156 52972312