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190494 = 23219557
BaseRepresentation
bin101110100000011110
3100200022100
4232200132
522043434
64025530
71422243
oct564036
9320270
10190494
11120137
12922a6
1368925
144d5ca
153b699
hex2e81e

190494 has 24 divisors (see below), whose sum is σ = 435240. Its totient is φ = 60048.

The previous prime is 190471. The next prime is 190507. The reversal of 190494 is 494091.

190494 = T132 + T133 + ... + T150.

190494 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 an unprimeable number.

190494 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, 64 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (18135).

2190494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217620).

190494 is an abundant number, since it is smaller than the sum of its proper divisors (244746).

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

190494 is a wasteful number, since it uses less digits than its factorization.

190494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 190494 is about 436.4561833678. The cubic root of 190494 is about 57.5387514458.

The spelling of 190494 in words is "one hundred ninety thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 557 1114 1671 3342 5013 10026 10583 21166 31749 63498 95247 190494