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139304 = 23111583
BaseRepresentation
bin100010000000101000
321002002102
4202000220
513424204
62552532
71120064
oct420050
9232072
10139304
1195730
1268748
134b539
1438aa4
152b41e
hex22028

139304 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 63280.

The previous prime is 139303. The next prime is 139309. The reversal of 139304 is 403931.

It is not an unprimeable number, because it can be changed into a prime (139301) 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, 704 + ... + 879.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2139304 is an apocalyptic number.

It is an amenable number.

139304 is an abundant number, since it is smaller than the sum of its proper divisors (145816).

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

139304 is a wasteful number, since it uses less digits than its factorization.

139304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1596 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 139304 is about 373.2345107302. The cubic root of 139304 is about 51.8387509860.

The spelling of 139304 in words is "one hundred thirty-nine thousand, three hundred four".

Divisors: 1 2 4 8 11 22 44 88 1583 3166 6332 12664 17413 34826 69652 139304