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53286405 = 353552427
BaseRepresentation
bin1100101101000…
…1011000000101
310201021020012120
43023101120011
5102120131110
65142040153
71214632644
oct313213005
9121236176
1053286405
1128095957
1215a19059
13b069223
14711135b
154a28870
hex32d1605

53286405 has 8 divisors (see below), whose sum is σ = 85258272. Its totient is φ = 28419408.

The previous prime is 53286397. The next prime is 53286413. The reversal of 53286405 is 50468235.

It is an interprime number because it is at equal distance from previous prime (53286397) and next prime (53286413).

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

It is not a de Polignac number, because 53286405 - 23 = 53286397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776199 + ... + 1776228.

It is an arithmetic number, because the mean of its divisors is an integer number (10657284).

Almost surely, 253286405 is an apocalyptic number.

It is an amenable number.

53286405 is a deficient number, since it is larger than the sum of its proper divisors (31971867).

53286405 is a wasteful number, since it uses less digits than its factorization.

53286405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552435.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 53286405 is about 7299.7537629704. The cubic root of 53286405 is about 376.3039760240.

The spelling of 53286405 in words is "fifty-three million, two hundred eighty-six thousand, four hundred five".

Divisors: 1 3 5 15 3552427 10657281 17762135 53286405