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53143648 = 251660739
BaseRepresentation
bin1100101010111…
…0100001100000
310200222222101021
43022232201200
5102101044043
65135015224
71213466515
oct312564140
9120888337
1053143648
1127aa8678
121596a514
13b01925c
1470b530c
1549eb3ed
hex32ae860

53143648 has 12 divisors (see below), whose sum is σ = 104626620. Its totient is φ = 26571808.

The previous prime is 53143637. The next prime is 53143679. The reversal of 53143648 is 84634135.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 as a sum of consecutive naturals, namely, 830338 + ... + 830401.

It is an arithmetic number, because the mean of its divisors is an integer number (8718885).

Almost surely, 253143648 is an apocalyptic number.

It is an amenable number.

53143648 is a deficient number, since it is larger than the sum of its proper divisors (51482972).

53143648 is a wasteful number, since it uses less digits than its factorization.

53143648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660749 (or 1660741 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 53143648 is about 7289.9689985623. The cubic root of 53143648 is about 375.9676296261.

The spelling of 53143648 in words is "fifty-three million, one hundred forty-three thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 1660739 3321478 6642956 13285912 26571824 53143648