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53159144 = 2322929017
BaseRepresentation
bin1100101011001…
…0010011101000
310201000202122012
43022302103220
5102102043034
65135215052
71213562633
oct312622350
9121022565
1053159144
1128009285
1215977488
13b02331c
1470bac1a
154a00cce
hex32b24e8

53159144 has 16 divisors (see below), whose sum is σ = 100112100. Its totient is φ = 26462592.

The previous prime is 53159143. The next prime is 53159149. The reversal of 53159144 is 44195135.

It can be written as a sum of positive squares in 2 ways, for example, as 52736644 + 422500 = 7262^2 + 650^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53159144.

It is not an unprimeable number, because it can be changed into a prime (53159143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12677 + ... + 16340.

Almost surely, 253159144 is an apocalyptic number.

It is an amenable number.

53159144 is a deficient number, since it is larger than the sum of its proper divisors (46952956).

53159144 is a wasteful number, since it uses less digits than its factorization.

53159144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29252 (or 29248 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 53159144 is about 7291.0317514053. The cubic root of 53159144 is about 376.0041685067.

The spelling of 53159144 in words is "fifty-three million, one hundred fifty-nine thousand, one hundred forty-four".

Divisors: 1 2 4 8 229 458 916 1832 29017 58034 116068 232136 6644893 13289786 26579572 53159144