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193894168 = 23137192593
BaseRepresentation
bin10111000111010…
…01011100011000
3111111211211210111
423203221130120
5344114103133
631123454104
74543034056
oct1343513430
9444754714
10193894168
119a4a2616
1254b27334
133122a0a0
141ba731d6
15120501cd
hexb8e9718

193894168 has 32 divisors (see below), whose sum is σ = 392212800. Its totient is φ = 89330688.

The previous prime is 193894123. The next prime is 193894177. The reversal of 193894168 is 861498391.

193894168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73480 + ... + 76072.

It is an arithmetic number, because the mean of its divisors is an integer number (12256650).

Almost surely, 2193894168 is an apocalyptic number.

It is an amenable number.

193894168 is an abundant number, since it is smaller than the sum of its proper divisors (198318632).

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

193894168 is a wasteful number, since it uses less digits than its factorization.

193894168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331 (or 3327 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 193894168 is about 13924.5886115174. The cubic root of 193894168 is about 578.7907504889.

The spelling of 193894168 in words is "one hundred ninety-three million, eight hundred ninety-four thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 719 1438 2593 2876 5186 5752 9347 10372 18694 20744 33709 37388 67418 74776 134836 269672 1864367 3728734 7457468 14914936 24236771 48473542 96947084 193894168