Base | Representation |
---|---|
bin | 10110011011110… |
… | …01000111100001 |
3 | 111010010002210111 |
4 | 23031321013201 |
5 | 341134104301 |
6 | 30401331321 |
7 | 4443412252 |
oct | 1315710741 |
9 | 433102714 |
10 | 188191201 |
11 | 97257920 |
12 | 53036b41 |
13 | 2ccb1353 |
14 | 1adcab29 |
15 | 117c5551 |
hex | b3791e1 |
188191201 has 8 divisors (see below), whose sum is σ = 205549344. Its totient is φ = 170874720.
The previous prime is 188191187. The next prime is 188191249. The reversal of 188191201 is 102191881.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 188191201 - 211 = 188189153 is a prime.
It is not an unprimeable number, because it can be changed into a prime (188191001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555 + ... + 19408.
It is an arithmetic number, because the mean of its divisors is an integer number (25693668).
Almost surely, 2188191201 is an apocalyptic number.
188191201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
188191201 is a deficient number, since it is larger than the sum of its proper divisors (17358143).
188191201 is a wasteful number, since it uses less digits than its factorization.
188191201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20831.
The product of its (nonzero) digits is 1152, while the sum is 31.
The square root of 188191201 is about 13718.2798119881. The cubic root of 188191201 is about 573.0595722576.
The spelling of 188191201 in words is "one hundred eighty-eight million, one hundred ninety-one thousand, two hundred one".
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