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52541257 = 163322339
BaseRepresentation
bin1100100001101…
…1011101001001
310122212101001111
43020123131021
5101422310012
65114050321
71205410336
oct310333511
9118771044
1052541257
112772702a
12157199a1
13ab68002
146d9998d
15492cba7
hex321b749

52541257 has 4 divisors (see below), whose sum is σ = 52863760. Its totient is φ = 52218756.

The previous prime is 52541233. The next prime is 52541261. The reversal of 52541257 is 75214525.

52541257 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52541257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52541857) 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, 161007 + ... + 161332.

It is an arithmetic number, because the mean of its divisors is an integer number (13215940).

Almost surely, 252541257 is an apocalyptic number.

It is an amenable number.

52541257 is a deficient number, since it is larger than the sum of its proper divisors (322503).

52541257 is a wasteful number, since it uses less digits than its factorization.

52541257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322502.

The product of its digits is 14000, while the sum is 31.

The square root of 52541257 is about 7248.5348174648. The cubic root of 52541257 is about 374.5416788877.

The spelling of 52541257 in words is "fifty-two million, five hundred forty-one thousand, two hundred fifty-seven".

Divisors: 1 163 322339 52541257