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53160020 = 22517156353
BaseRepresentation
bin1100101011001…
…0100001010100
310201000210211122
43022302201110
5102102110040
65135223112
71213565324
oct312624124
9121023748
1053160020
1128009a01
1215977a98
13b023844
1470bb284
154a011b5
hex32b2854

53160020 has 24 divisors (see below), whose sum is σ = 118203624. Its totient is φ = 20013056.

The previous prime is 53160013. The next prime is 53160073. The reversal of 53160020 is 2006135.

It can be written as a sum of positive squares in 4 ways, for example, as 568516 + 52591504 = 754^2 + 7252^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 77837 + ... + 78516.

It is an arithmetic number, because the mean of its divisors is an integer number (4925151).

Almost surely, 253160020 is an apocalyptic number.

It is an amenable number.

53160020 is an abundant number, since it is smaller than the sum of its proper divisors (65043604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53160020 is a wasteful number, since it uses less digits than its factorization.

53160020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156379 (or 156377 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 53160020 is about 7291.0918249601. The cubic root of 53160020 is about 376.0062338637.

Adding to 53160020 its reverse (2006135), we get a palindrome (55166155).

The spelling of 53160020 in words is "fifty-three million, one hundred sixty thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 156353 312706 625412 781765 1563530 2658001 3127060 5316002 10632004 13290005 26580010 53160020