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191082119 = 475379971
BaseRepresentation
bin10110110001110…
…10111010000111
3111022112222101112
423120322322013
5342404111434
630543315235
74510112504
oct1330727207
9438488345
10191082119
1198951908
1253babb1b
1330784157
141b5404ab
1511b96dce
hexb63ae87

191082119 has 16 divisors (see below), whose sum is σ = 201553920. Its totient is φ = 180978720.

The previous prime is 191082113. The next prime is 191082161. The reversal of 191082119 is 911280191.

It is a cyclic number.

It is not a de Polignac number, because 191082119 - 216 = 191016583 is a prime.

It is a super-2 number, since 2×1910821192 = 73024752403060322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191082113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196304 + ... + 197274.

It is an arithmetic number, because the mean of its divisors is an integer number (12597120).

Almost surely, 2191082119 is an apocalyptic number.

191082119 is a deficient number, since it is larger than the sum of its proper divisors (10471801).

191082119 is an equidigital number, since it uses as much as digits as its factorization.

191082119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 191082119 is about 13823.2456029689. The cubic root of 191082119 is about 575.9790443363.

The spelling of 191082119 in words is "one hundred ninety-one million, eighty-two thousand, one hundred nineteen".

Divisors: 1 47 53 79 971 2491 3713 4187 45637 51463 76709 196789 2418761 3605323 4065577 191082119