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390022 = 21911021
BaseRepresentation
bin1011111001110000110
3201211000021
41133032012
544440042
612205354
73213043
oct1371606
9654007
10390022
11247036
1216985a
131086a9
14a21ca
157a867
hex5f386

390022 has 8 divisors (see below), whose sum is σ = 588672. Its totient is φ = 193800.

The previous prime is 390001. The next prime is 390043. The reversal of 390022 is 220093.

It is an interprime number because it is at equal distance from previous prime (390001) and next prime (390043).

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

It is a junction number, because it is equal to n+sod(n) for n = 389978 and 390005.

It is a congruent number.

It is an unprimeable number.

390022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (73584).

2390022 is an apocalyptic number.

390022 is a deficient number, since it is larger than the sum of its proper divisors (198650).

390022 is a wasteful number, since it uses less digits than its factorization.

390022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 390022 is about 624.5174136884. The cubic root of 390022 is about 73.0628095196.

The spelling of 390022 in words is "three hundred ninety thousand, twenty-two".

Divisors: 1 2 191 382 1021 2042 195011 390022