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168082404 = 223710319427
BaseRepresentation
bin10100000010010…
…11101111100100
3102201021110201020
422001023233210
5321012114104
624402331140
74110451110
oct1201135744
9381243636
10168082404
1186972886
1248359ab0
1328a90559
1418474740
15eb522d9
hexa04bbe4

168082404 has 48 divisors (see below), whose sum is σ = 452594688. Its totient is φ = 47554848.

The previous prime is 168082381. The next prime is 168082441. The reversal of 168082404 is 404280861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (9429056).

Almost surely, 2168082404 is an apocalyptic number.

168082404 is a gapful number since it is divisible by the number (14) 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 168082404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226297344).

168082404 is an abundant number, since it is smaller than the sum of its proper divisors (284512284).

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

168082404 is a wasteful number, since it uses less digits than its factorization.

168082404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19544 (or 19542 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 168082404 is about 12964.6598104231. The cubic root of 168082404 is about 551.8750373504.

The spelling of 168082404 in words is "one hundred sixty-eight million, eighty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 103 206 309 412 618 721 1236 1442 2163 2884 4326 8652 19427 38854 58281 77708 116562 135989 233124 271978 407967 543956 815934 1631868 2000981 4001962 6002943 8003924 12005886 14006867 24011772 28013734 42020601 56027468 84041202 168082404