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190742 = 2283337
BaseRepresentation
bin101110100100010110
3100200122112
4232210112
522100432
64031022
71423046
oct564426
9320575
10190742
11120342
1292472
1368a86
144d726
153b7b2
hex2e916

190742 has 8 divisors (see below), whose sum is σ = 287976. Its totient is φ = 94752.

The previous prime is 190717. The next prime is 190753. The reversal of 190742 is 247091.

190742 is nontrivially palindromic in base 13.

190742 is digitally balanced in base 2 and base 3, because in such bases 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 a congruent number.

It is an unprimeable number.

190742 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 3 ways as a sum of consecutive naturals, for example, 398 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (35997).

2190742 is an apocalyptic number.

190742 is a deficient number, since it is larger than the sum of its proper divisors (97234).

190742 is a wasteful number, since it uses less digits than its factorization.

190742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 190742 is about 436.7401973714. The cubic root of 190742 is about 57.5637101014.

The spelling of 190742 in words is "one hundred ninety thousand, seven hundred forty-two".

Divisors: 1 2 283 337 566 674 95371 190742