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390068 = 22713931
BaseRepresentation
bin1011111001110110100
3201211001222
41133032310
544440233
612205512
73213140
oct1371664
9654058
10390068
11247078
12169898
13108713
14a2220
157a898
hex5f3b4

390068 has 12 divisors (see below), whose sum is σ = 780192. Its totient is φ = 167160.

The previous prime is 390067. The next prime is 390077. The reversal of 390068 is 860093.

It is a happy number.

390068 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390067) 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, 6938 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (65016).

2390068 is an apocalyptic number.

It is an amenable number.

390068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390068 is a wasteful number, since it uses less digits than its factorization.

390068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13942 (or 13940 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 390068 is about 624.5542410392. The cubic root of 390068 is about 73.0656817995.

The spelling of 390068 in words is "three hundred ninety thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 13931 27862 55724 97517 195034 390068