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52457007 = 317485669
BaseRepresentation
bin1100100000011…
…0111000101111
310122201002111010
43020012320233
5101412111012
65112200303
71204606611
oct310067057
9118632433
1052457007
11276797a9
1215699093
13ab38865
146d76db1
154912c3c
hex3206e2f

52457007 has 4 divisors (see below), whose sum is σ = 69942680. Its totient is φ = 34971336.

The previous prime is 52457003. The next prime is 52457017. The reversal of 52457007 is 70075425.

52457007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52457007 - 22 = 52457003 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 (52457003) 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 3 ways as a sum of consecutive naturals, for example, 8742832 + ... + 8742837.

It is an arithmetic number, because the mean of its divisors is an integer number (17485670).

Almost surely, 252457007 is an apocalyptic number.

52457007 is a deficient number, since it is larger than the sum of its proper divisors (17485673).

52457007 is a wasteful number, since it uses less digits than its factorization.

52457007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485672.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 52457007 is about 7242.7209665981. The cubic root of 52457007 is about 374.3413790375.

The spelling of 52457007 in words is "fifty-two million, four hundred fifty-seven thousand, seven".

Divisors: 1 3 17485669 52457007