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190642 = 2199479
BaseRepresentation
bin101110100010110010
3100200111211
4232202302
522100032
64030334
71422544
oct564262
9320454
10190642
11120261
12923aa
1368a0a
144d694
153b747
hex2e8b2

190642 has 8 divisors (see below), whose sum is σ = 288000. Its totient is φ = 94644.

The previous prime is 190639. The next prime is 190649. The reversal of 190642 is 246091.

190642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (190649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159 + ... + 637.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2190642 is an apocalyptic number.

190642 is a deficient number, since it is larger than the sum of its proper divisors (97358).

190642 is a wasteful number, since it uses less digits than its factorization.

190642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 190642 is about 436.6256978237. The cubic root of 190642 is about 57.5536487318.

The spelling of 190642 in words is "one hundred ninety thousand, six hundred forty-two".

Divisors: 1 2 199 398 479 958 95321 190642