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190112356 = 22726115901
BaseRepresentation
bin10110101010011…
…10001001100100
3111020201201010101
423111032021210
5342132043411
630510433444
74465633300
oct1325161144
9436651111
10190112356
119834a255
1253802884
1330504925
141b36ad00
1511a548c1
hexb54e264

190112356 has 36 divisors (see below), whose sum is σ = 393383676. Its totient is φ = 80136000.

The previous prime is 190112341. The next prime is 190112381. The reversal of 190112356 is 653211091.

It can be written as a sum of positive squares in 2 ways, for example, as 104734756 + 85377600 = 10234^2 + 9240^2 .

It is a super-2 number, since 2×1901123562 = 72285415807741472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4006 + ... + 19906.

Almost surely, 2190112356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190112356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196691838).

190112356 is an abundant number, since it is smaller than the sum of its proper divisors (203271320).

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

190112356 is a wasteful number, since it uses less digits than its factorization.

190112356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 190112356 is about 13788.1237302252. The cubic root of 190112356 is about 575.0030054033.

The spelling of 190112356 in words is "one hundred ninety million, one hundred twelve thousand, three hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 61 98 122 196 244 427 854 1708 2989 5978 11956 15901 31802 63604 111307 222614 445228 779149 969961 1558298 1939922 3116596 3879844 6789727 13579454 27158908 47528089 95056178 190112356