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168889300 = 22521688893
BaseRepresentation
bin10100001000100…
…00101111010100
3102202210110120021
422010100233110
5321213424200
624431514524
74120351426
oct1204205724
9382713507
10168889300
1187374038
1248688a44
1328cb38c8
1418604816
15ec6141a
hexa110bd4

168889300 has 18 divisors (see below), whose sum is σ = 366489998. Its totient is φ = 67555680.

The previous prime is 168889277. The next prime is 168889321. The reversal of 168889300 is 3988861.

It is a happy number.

168889300 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 3 ways, for example, as 35856144 + 133033156 = 5988^2 + 11534^2 .

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 5 ways as a sum of consecutive naturals, for example, 844347 + ... + 844546.

Almost surely, 2168889300 is an apocalyptic number.

168889300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168889300 is an abundant number, since it is smaller than the sum of its proper divisors (197600698).

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

168889300 is a wasteful number, since it uses less digits than its factorization.

168889300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688907 (or 1688900 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 168889300 is about 12995.7416102353. The cubic root of 168889300 is about 552.7567379647.

The spelling of 168889300 in words is "one hundred sixty-eight million, eight hundred eighty-nine thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1688893 3377786 6755572 8444465 16888930 33777860 42222325 84444650 168889300