Base | Representation |
---|---|
bin | 10111000001101… |
… | …01001110001100 |
3 | 111110110100012012 |
4 | 23200311032030 |
5 | 343421442410 |
6 | 31100000352 |
7 | 4533540653 |
oct | 1340651614 |
9 | 443410165 |
10 | 193155980 |
11 | 9a038a46 |
12 | 548300b8 |
13 | 3102c0a4 |
14 | 1b92019a |
15 | 11e56605 |
hex | b83538c |
193155980 has 12 divisors (see below), whose sum is σ = 405627600. Its totient is φ = 77262384.
The previous prime is 193155959. The next prime is 193156013. The reversal of 193155980 is 89551391.
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 3 ways as a sum of consecutive naturals, for example, 4828880 + ... + 4828919.
It is an arithmetic number, because the mean of its divisors is an integer number (33802300).
Almost surely, 2193155980 is an apocalyptic number.
193155980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
193155980 is an abundant number, since it is smaller than the sum of its proper divisors (212471620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
193155980 is a wasteful number, since it uses less digits than its factorization.
193155980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9657808 (or 9657806 counting only the distinct ones).
The product of its (nonzero) digits is 48600, while the sum is 41.
The square root of 193155980 is about 13898.0566986899. The cubic root of 193155980 is about 578.0552981660.
The spelling of 193155980 in words is "one hundred ninety-three million, one hundred fifty-five thousand, nine hundred eighty".
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