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168085300 = 225213712269
BaseRepresentation
bin10100000010011…
…00011100110100
3102201021121200111
422001030130310
5321012212200
624402352404
74110462415
oct1201143464
9381247614
10168085300
1186974a79
124835b704
1328a91976
141847580c
15eb530ba
hexa04c734

168085300 has 36 divisors (see below), whose sum is σ = 367437420. Its totient is φ = 66737920.

The previous prime is 168085289. The next prime is 168085319. The reversal of 168085300 is 3580861.

It can be written as a sum of positive squares in 6 ways, for example, as 5216656 + 162868644 = 2284^2 + 12762^2 .

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 11 ways as a sum of consecutive naturals, for example, 7566 + ... + 19834.

It is an arithmetic number, because the mean of its divisors is an integer number (10206595).

Almost surely, 2168085300 is an apocalyptic number.

168085300 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 168085300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183718710).

168085300 is an abundant number, since it is smaller than the sum of its proper divisors (199352120).

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

168085300 is a wasteful number, since it uses less digits than its factorization.

168085300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420 (or 12413 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 168085300 is about 12964.7714981792. The cubic root of 168085300 is about 551.8782068690.

The spelling of 168085300 in words is "one hundred sixty-eight million, eighty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 137 274 548 685 1370 2740 3425 6850 12269 13700 24538 49076 61345 122690 245380 306725 613450 1226900 1680853 3361706 6723412 8404265 16808530 33617060 42021325 84042650 168085300