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191696982 = 2331949497
BaseRepresentation
bin10110110110100…
…01000001010110
3111100201012211020
423123101001112
5343033300412
631004422010
74515253221
oct1333210126
9440635736
10191696982
1199231864
1254247906
133093ac89
141b6605b8
1511c6918c
hexb6d1056

191696982 has 8 divisors (see below), whose sum is σ = 383393976. Its totient is φ = 63898992.

The previous prime is 191696971. The next prime is 191696987. The reversal of 191696982 is 289696191.

It is a sphenic number, since it is the product of 3 distinct primes.

191696982 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191696987) by changing a digit.

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, 15974743 + ... + 15974754.

It is an arithmetic number, because the mean of its divisors is an integer number (47924247).

Almost surely, 2191696982 is an apocalyptic number.

191696982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191696982 is a wasteful number, since it uses less digits than its factorization.

191696982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31949502.

The product of its digits is 419904, while the sum is 51.

The square root of 191696982 is about 13845.4679227536. The cubic root of 191696982 is about 576.5961769490.

The spelling of 191696982 in words is "one hundred ninety-one million, six hundred ninety-six thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 31949497 63898994 95848491 191696982