Search a number
-
+
188191201 = 1185719963
BaseRepresentation
bin10110011011110…
…01000111100001
3111010010002210111
423031321013201
5341134104301
630401331321
74443412252
oct1315710741
9433102714
10188191201
1197257920
1253036b41
132ccb1353
141adcab29
15117c5551
hexb3791e1

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".

Divisors: 1 11 857 9427 19963 219593 17108291 188191201