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52457015 = 5135315227
BaseRepresentation
bin1100100000011…
…0111000110111
310122201002111102
43020012320313
5101412111030
65112200315
71204606622
oct310067067
9118632442
1052457015
1127679806
121569909b
13ab38870
146d76db9
154912c45
hex3206e37

52457015 has 16 divisors (see below), whose sum is σ = 69074208. Its totient is φ = 38004096.

The previous prime is 52457003. The next prime is 52457017. The reversal of 52457015 is 51075425.

52457015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52457015 - 28 = 52456759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52457017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4169 + ... + 11058.

It is an arithmetic number, because the mean of its divisors is an integer number (4317138).

Almost surely, 252457015 is an apocalyptic number.

52457015 is a deficient number, since it is larger than the sum of its proper divisors (16617193).

52457015 is a wasteful number, since it uses less digits than its factorization.

52457015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15298.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 52457015 is about 7242.7215188767. The cubic root of 52457015 is about 374.3413980672.

The spelling of 52457015 in words is "fifty-two million, four hundred fifty-seven thousand, fifteen".

Divisors: 1 5 13 53 65 265 689 3445 15227 76135 197951 807031 989755 4035155 10491403 52457015