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168893800 = 2352844469
BaseRepresentation
bin10100001000100…
…01110101101000
3102202210200201221
422010101311220
5321214100200
624431551424
74120400515
oct1204216550
9382720657
10168893800
1187377459
124868b574
1328cb597a
141860630c
15ec6291a
hexa111d68

168893800 has 24 divisors (see below), whose sum is σ = 392678550. Its totient is φ = 67557440.

The previous prime is 168893783. The next prime is 168893821. The reversal of 168893800 is 8398861.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 87497316 + 81396484 = 9354^2 + 9022^2 .

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, 422035 + ... + 422434.

Almost surely, 2168893800 is an apocalyptic number.

168893800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168893800 is an abundant number, since it is smaller than the sum of its proper divisors (223784750).

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

168893800 is a wasteful number, since it uses less digits than its factorization.

168893800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844485 (or 844476 counting only the distinct ones).

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

The square root of 168893800 is about 12995.9147427182. The cubic root of 168893800 is about 552.7616472617.

The spelling of 168893800 in words is "one hundred sixty-eight million, eight hundred ninety-three thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 844469 1688938 3377876 4222345 6755752 8444690 16889380 21111725 33778760 42223450 84446900 168893800