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52972311 = 372522491
BaseRepresentation
bin1100101000010…
…0101100010111
310200200021100110
43022010230113
5102030103221
65131214103
71212154140
oct312045427
9120607313
1052972311
11279a0977
12158a7333
13ac89282
14706cac7
1549b5776
hex3284b17

52972311 has 8 divisors (see below), whose sum is σ = 80719744. Its totient is φ = 30269880.

The previous prime is 52972307. The next prime is 52972313. The reversal of 52972311 is 11327925.

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

It is not a de Polignac number, because 52972311 - 22 = 52972307 is a prime.

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, 1261225 + ... + 1261266.

It is an arithmetic number, because the mean of its divisors is an integer number (10089968).

Almost surely, 252972311 is an apocalyptic number.

52972311 is a deficient number, since it is larger than the sum of its proper divisors (27747433).

52972311 is a wasteful number, since it uses less digits than its factorization.

52972311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522501.

The product of its digits is 3780, while the sum is 30.

The square root of 52972311 is about 7278.2079525114. The cubic root of 52972311 is about 375.5631503190.

The spelling of 52972311 in words is "fifty-two million, nine hundred seventy-two thousand, three hundred eleven".

Divisors: 1 3 7 21 2522491 7567473 17657437 52972311