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190120 = 2357297
BaseRepresentation
bin101110011010101000
3100122210111
4232122220
522040440
64024104
71421200
oct563250
9318714
10190120
1111a927
1292034
13686c8
144d400
153b4ea
hex2e6a8

190120 has 48 divisors (see below), whose sum is σ = 502740. Its totient is φ = 64512.

The previous prime is 190097. The next prime is 190121. The reversal of 190120 is 21091.

190120 is digitally balanced in base 2, 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 2 ways, for example, as 188356 + 1764 = 434^2 + 42^2 .

It is a super-2 number, since 2×1901202 = 72291228800, 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 190120.

It is not an unprimeable number, because it can be changed into a prime (190121) by changing a digit.

190120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912 + ... + 2008.

2190120 is an apocalyptic number.

190120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251370).

190120 is an abundant number, since it is smaller than the sum of its proper divisors (312620).

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

190120 is a wasteful number, since it uses less digits than its factorization.

190120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 190120 is about 436.0275220671. The cubic root of 190120 is about 57.5010711836.

The spelling of 190120 in words is "one hundred ninety thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 97 98 140 194 196 245 280 388 392 485 490 679 776 970 980 1358 1940 1960 2716 3395 3880 4753 5432 6790 9506 13580 19012 23765 27160 38024 47530 95060 190120