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52972870 = 255297287
BaseRepresentation
bin1100101000010…
…0110101000110
310200200022010011
43022010311012
5102030112440
65131220434
71212155566
oct312046506
9120608104
1052972870
11279a1335
12158a771a
13ac895c2
14706cda6
1549b59ea
hex3284d46

52972870 has 8 divisors (see below), whose sum is σ = 95351184. Its totient is φ = 21189144.

The previous prime is 52972859. The next prime is 52972873. The reversal of 52972870 is 7827925.

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

It is a super-2 number, since 2×529728702 = 5612249912073800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52972873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648634 + ... + 2648653.

It is an arithmetic number, because the mean of its divisors is an integer number (11918898).

Almost surely, 252972870 is an apocalyptic number.

52972870 is a deficient number, since it is larger than the sum of its proper divisors (42378314).

52972870 is a wasteful number, since it uses less digits than its factorization.

52972870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297294.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 52972870 is about 7278.2463547203. The cubic root of 52972870 is about 375.5644713806.

The spelling of 52972870 in words is "fifty-two million, nine hundred seventy-two thousand, eight hundred seventy".

Divisors: 1 2 5 10 5297287 10594574 26486435 52972870