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190231112 = 23103230863
BaseRepresentation
bin10110101011010…
…11001001001000
3111020221202000202
423111223021020
5342144343422
630513151332
74466636441
oct1325531110
9436852022
10190231112
11984204a5
125385b548
13305469b6
141b39c2c8
1511a79b92
hexb56b248

190231112 has 16 divisors (see below), whose sum is σ = 360147840. Its totient is φ = 94191696.

The previous prime is 190231109. The next prime is 190231117. The reversal of 190231112 is 211132091.

It is not an unprimeable number, because it can be changed into a prime (190231117) 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, 114608 + ... + 116255.

It is an arithmetic number, because the mean of its divisors is an integer number (22509240).

Almost surely, 2190231112 is an apocalyptic number.

It is an amenable number.

190231112 is a deficient number, since it is larger than the sum of its proper divisors (169916728).

190231112 is a wasteful number, since it uses less digits than its factorization.

190231112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230972 (or 230968 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 190231112 is about 13792.4295176738. The cubic root of 190231112 is about 575.1227080271.

The spelling of 190231112 in words is "one hundred ninety million, two hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 103 206 412 824 230863 461726 923452 1846904 23778889 47557778 95115556 190231112