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191955094 = 2177754011
BaseRepresentation
bin10110111000100…
…00000010010110
3111101012022212221
423130100002112
5343120030334
631014132554
74520406562
oct1334200226
9441168787
10191955094
1199398781
125435115a
13309cb5c6
141b6ca6a2
1511cba8b4
hexb710096

191955094 has 8 divisors (see below), whose sum is σ = 288100008. Its totient is φ = 95921760.

The previous prime is 191955083. The next prime is 191955107. The reversal of 191955094 is 490559191.

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

It is a super-2 number, since 2×1919550942 = 73693516225097672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 191955094.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23452 + ... + 30559.

It is an arithmetic number, because the mean of its divisors is an integer number (36012501).

Almost surely, 2191955094 is an apocalyptic number.

191955094 is a deficient number, since it is larger than the sum of its proper divisors (96144914).

191955094 is a wasteful number, since it uses less digits than its factorization.

191955094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55790.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 191955094 is about 13854.7859600934. The cubic root of 191955094 is about 576.8548484639.

The spelling of 191955094 in words is "one hundred ninety-one million, nine hundred fifty-five thousand, ninety-four".

Divisors: 1 2 1777 3554 54011 108022 95977547 191955094