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53161008 = 243372809
BaseRepresentation
bin1100101011001…
…0110000110000
310201000212012020
43022302300300
5102102123013
65135231440
71213601235
oct312626060
9121025166
1053161008
112800a71a
1215978580
13b024124
1470bb78c
154a01623
hex32b2c30

53161008 has 60 divisors (see below), whose sum is σ = 141319080. Its totient is φ = 17220096.

The previous prime is 53161007. The next prime is 53161013. The reversal of 53161008 is 80016135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53161007) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 65308 + ... + 66116.

It is an arithmetic number, because the mean of its divisors is an integer number (2355318).

Almost surely, 253161008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53161008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70659540).

53161008 is an abundant number, since it is smaller than the sum of its proper divisors (88158072).

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

53161008 is a wasteful number, since it uses less digits than its factorization.

53161008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 53161008 is about 7291.1595785581. The cubic root of 53161008 is about 376.0085632575.

The spelling of 53161008 in words is "fifty-three million, one hundred sixty-one thousand, eight".

Divisors: 1 2 3 4 6 8 12 16 24 37 48 74 111 148 222 296 444 592 809 888 1369 1618 1776 2427 2738 3236 4107 4854 5476 6472 8214 9708 10952 12944 16428 19416 21904 29933 32856 38832 59866 65712 89799 119732 179598 239464 359196 478928 718392 1107521 1436784 2215042 3322563 4430084 6645126 8860168 13290252 17720336 26580504 53161008