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380868 = 223171867
BaseRepresentation
bin1011100111111000100
3201100110020
41130333010
544141433
612055140
73144255
oct1347704
9640406
10380868
11240174
121644b0
13104487
149cb2c
1577cb3
hex5cfc4

380868 has 24 divisors (see below), whose sum is σ = 941472. Its totient is φ = 119424.

The previous prime is 380867. The next prime is 380869. The reversal of 380868 is 868083.

It is an interprime number because it is at equal distance from previous prime (380867) and next prime (380869).

It is not an unprimeable number, because it can be changed into a prime (380867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 730 + ... + 1137.

It is an arithmetic number, because the mean of its divisors is an integer number (39228).

2380868 is an apocalyptic number.

It is an amenable number.

380868 is an abundant number, since it is smaller than the sum of its proper divisors (560604).

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

380868 is a wasteful number, since it uses less digits than its factorization.

380868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 380868 is about 617.1450396787. The cubic root of 380868 is about 72.4866721438.

The spelling of 380868 in words is "three hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1867 3734 5601 7468 11202 22404 31739 63478 95217 126956 190434 380868