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168064160 = 2551128681
BaseRepresentation
bin10100000010001…
…11010010100000
3102201020112200112
422001013102200
5321011023120
624402110452
74110343655
oct1201072240
9381215615
10168064160
1186960100
124834b428
1328a85164
141846bc2c
15eb4bbc5
hexa0474a0

168064160 has 72 divisors (see below), whose sum is σ = 436478868. Its totient is φ = 61107200.

The previous prime is 168064153. The next prime is 168064163. The reversal of 168064160 is 61460861.

It is a happy number.

168064160 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 166203664 + 1860496 = 12892^2 + 1364^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (168064163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15020 + ... + 23700.

Almost surely, 2168064160 is an apocalyptic number.

168064160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168064160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218239434).

168064160 is an abundant number, since it is smaller than the sum of its proper divisors (268414708).

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

168064160 is a wasteful number, since it uses less digits than its factorization.

168064160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718 (or 8699 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 168064160 is about 12963.9561862882. The cubic root of 168064160 is about 551.8550694214.

The spelling of 168064160 in words is "one hundred sixty-eight million, sixty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 121 160 176 220 242 352 440 484 605 880 968 1210 1760 1936 2420 3872 4840 8681 9680 17362 19360 34724 43405 69448 86810 95491 138896 173620 190982 277792 347240 381964 477455 694480 763928 954910 1050401 1388960 1527856 1909820 2100802 3055712 3819640 4201604 5252005 7639280 8403208 10504010 15278560 16806416 21008020 33612832 42016040 84032080 168064160