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319739904 = 21132111983
BaseRepresentation
bin10011000011101…
…101100000000000
3211021122110200200
4103003231200000
51123323134104
651421045200
710631513211
oct2303554000
9737573620
10319739904
11154537360
128b0b6800
135131ca13
1430671408
151d10cb39
hex130ed800

319739904 has 288 divisors, whose sum is σ = 1073217600. Its totient is φ = 90685440.

The previous prime is 319739891. The next prime is 319739911. The reversal of 319739904 is 409937913.

319739904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 319739904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3852247 + ... + 3852329.

It is an arithmetic number, because the mean of its divisors is an integer number (3726450).

Almost surely, 2319739904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319739904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536608800).

319739904 is an abundant number, since it is smaller than the sum of its proper divisors (753477696).

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

319739904 is a wasteful number, since it uses less digits than its factorization.

319739904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 319739904 is about 17881.2724379447. The cubic root of 319739904 is about 683.8050126465.

The spelling of 319739904 in words is "three hundred nineteen million, seven hundred thirty-nine thousand, nine hundred four".