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193684080 = 2435807017
BaseRepresentation
bin10111000101101…
…10001001110000
3111111110011121110
423202312021300
5344040342310
631115153320
74541200422
oct1342661160
9444404543
10193684080
119a369797
1254a45840
1331185585
141ba1a812
151200cd20
hexb8b6270

193684080 has 40 divisors (see below), whose sum is σ = 600421392. Its totient is φ = 51649024.

The previous prime is 193684033. The next prime is 193684097. The reversal of 193684080 is 80486391.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 403269 + ... + 403748.

Almost surely, 2193684080 is an apocalyptic number.

193684080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193684080 is an abundant number, since it is smaller than the sum of its proper divisors (406737312).

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

193684080 is a wasteful number, since it uses less digits than its factorization.

193684080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807033 (or 807027 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 193684080 is about 13917.0427893285. The cubic root of 193684080 is about 578.5816313658.

The spelling of 193684080 in words is "one hundred ninety-three million, six hundred eighty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 807017 1614034 2421051 3228068 4035085 4842102 6456136 8070170 9684204 12105255 12912272 16140340 19368408 24210510 32280680 38736816 48421020 64561360 96842040 193684080