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190668 = 22315889
BaseRepresentation
bin101110100011001100
3100200112210
4232203030
522100133
64030420
71422612
oct564314
9320483
10190668
11120285
1292410
1368a2a
144d6b2
153b763
hex2e8cc

190668 has 12 divisors (see below), whose sum is σ = 444920. Its totient is φ = 63552.

The previous prime is 190667. The next prime is 190669. The reversal of 190668 is 866091.

It can be divided in two parts, 190 and 668, that added together give a palindrome (858).

190668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (190667) and next prime (190669).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (190667) 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, 7933 + ... + 7956.

2190668 is an apocalyptic number.

It is an amenable number.

190668 is an abundant number, since it is smaller than the sum of its proper divisors (254252).

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

190668 is a wasteful number, since it uses less digits than its factorization.

190668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896 (or 15894 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 190668 is about 436.6554705944. The cubic root of 190668 is about 57.5562650263.

The spelling of 190668 in words is "one hundred ninety thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 15889 31778 47667 63556 95334 190668