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52972206 = 2375921377
BaseRepresentation
bin1100101000010…
…0101010101110
310200200021012120
43022010222232
5102030102311
65131213410
71212153630
oct312045256
9120607176
1052972206
11279a0891
12158a7266
13ac89201
14706ca50
1549b5706
hex3284aae

52972206 has 32 divisors (see below), whose sum is σ = 123137280. Its totient is φ = 14877696.

The previous prime is 52972201. The next prime is 52972219. The reversal of 52972206 is 60227925.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52972201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8211 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (3848040).

Almost surely, 252972206 is an apocalyptic number.

52972206 is an abundant number, since it is smaller than the sum of its proper divisors (70165074).

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

52972206 is a wasteful number, since it uses less digits than its factorization.

52972206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21448.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 52972206 is about 7278.2007391937. The cubic root of 52972206 is about 375.5629021758.

It can be divided in two parts, 5297 and 2206, that added together give a triangular number (7503 = T122).

The spelling of 52972206 in words is "fifty-two million, nine hundred seventy-two thousand, two hundred six".

Divisors: 1 2 3 6 7 14 21 42 59 118 177 354 413 826 1239 2478 21377 42754 64131 128262 149639 299278 448917 897834 1261243 2522486 3783729 7567458 8828701 17657402 26486103 52972206