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52152485 = 5711135461
BaseRepresentation
bin1100011011110…
…0100010100101
310122010121202112
43012330202211
5101322334420
65101450405
71202201030
oct306744245
9118117675
1052152485
1127490a30
1215570a05
13aa60078
146cd8017
1548a28c5
hex31bc8a5

52152485 has 16 divisors (see below), whose sum is σ = 78026112. Its totient is φ = 32510400.

The previous prime is 52152479. The next prime is 52152493. The reversal of 52152485 is 58425125.

52152485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-52152485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 67346 + ... + 68115.

It is an arithmetic number, because the mean of its divisors is an integer number (4876632).

Almost surely, 252152485 is an apocalyptic number.

52152485 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52152485 is a deficient number, since it is larger than the sum of its proper divisors (25873627).

52152485 is a wasteful number, since it uses less digits than its factorization.

52152485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135484.

The product of its digits is 16000, while the sum is 32.

The square root of 52152485 is about 7221.6677436725. The cubic root of 52152485 is about 373.6156006436.

The spelling of 52152485 in words is "fifty-two million, one hundred fifty-two thousand, four hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 135461 677305 948227 1490071 4741135 7450355 10430497 52152485