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190146 = 23114367
BaseRepresentation
bin101110011011000010
3100122211110
4232123002
522041041
64024150
71421235
oct563302
9318743
10190146
1111a950
1292056
1368718
144d41c
153b516
hex2e6c2

190146 has 32 divisors (see below), whose sum is σ = 430848. Its totient is φ = 55440.

The previous prime is 190129. The next prime is 190147. The reversal of 190146 is 641091.

190146 = 432 + 442 + ... + 862.

190146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190147) by changing a digit.

190146 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 15 ways as a sum of consecutive naturals, for example, 2805 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (13464).

2190146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215424).

190146 is an abundant number, since it is smaller than the sum of its proper divisors (240702).

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

190146 is a wasteful number, since it uses less digits than its factorization.

190146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 190146 is about 436.0573356796. The cubic root of 190146 is about 57.5036922645.

The spelling of 190146 in words is "one hundred ninety thousand, one hundred forty-six".

Divisors: 1 2 3 6 11 22 33 43 66 67 86 129 134 201 258 402 473 737 946 1419 1474 2211 2838 2881 4422 5762 8643 17286 31691 63382 95073 190146