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52871485 = 523414517
BaseRepresentation
bin1100100110110…
…0000100111101
310200111011001011
43021230010331
5102013341420
65125115221
71211254162
oct311540475
9120434034
1052871485
1127932147
1215858b11
13ac52404
147044069
15499595a
hex326c13d

52871485 has 8 divisors (see below), whose sum is σ = 63486936. Its totient is φ = 42269760.

The previous prime is 52871473. The next prime is 52871501. The reversal of 52871485 is 58417825.

52871485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 52794756 = 277^2 + 7266^2 .

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

It is not a de Polignac number, because 52871485 - 211 = 52869437 is a prime.

It is a super-2 number, since 2×528714852 = 5590787852210450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9447 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (7935867).

Almost surely, 252871485 is an apocalyptic number.

It is an amenable number.

52871485 is a deficient number, since it is larger than the sum of its proper divisors (10615451).

52871485 is a wasteful number, since it uses less digits than its factorization.

52871485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863.

The product of its digits is 89600, while the sum is 40.

The square root of 52871485 is about 7271.2780857288. The cubic root of 52871485 is about 375.3247202184.

The spelling of 52871485 in words is "fifty-two million, eight hundred seventy-one thousand, four hundred eighty-five".

Divisors: 1 5 2341 4517 11705 22585 10574297 52871485