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190111122 = 23210561729
BaseRepresentation
bin10110101010011…
…01110110010010
3111020201122102200
423111031312102
5342132023442
630510424030
74465626555
oct1325156622
9436648380
10190111122
1198349333
1253802016
13305041b6
141b36a69c
1511a5434c
hexb54dd92

190111122 has 12 divisors (see below), whose sum is σ = 411907470. Its totient is φ = 63370368.

The previous prime is 190111121. The next prime is 190111139. The reversal of 190111122 is 221111091.

It is a happy number.

190111122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 180875601 + 9235521 = 13449^2 + 3039^2 .

It is a super-2 number, since 2×1901111222 = 72284477416197768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 10561729 = 190111122 / (1 + 9 + 0 + 1 + 1 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 190111095 and 190111104.

It is not an unprimeable number, because it can be changed into a prime (190111121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5280847 + ... + 5280882.

Almost surely, 2190111122 is an apocalyptic number.

190111122 is an abundant number, since it is smaller than the sum of its proper divisors (221796348).

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

190111122 is a wasteful number, since it uses less digits than its factorization.

190111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561737 (or 10561734 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 190111122 is about 13788.0789814970. The cubic root of 190111122 is about 575.0017613053.

The spelling of 190111122 in words is "one hundred ninety million, one hundred eleven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 10561729 21123458 31685187 63370374 95055561 190111122