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319142860 = 22573218591
BaseRepresentation
bin10011000001011…
…011101111001100
3211020112010200221
4103001123233030
51123200032420
651400201124
710623445441
oct2301335714
9736463627
10319142860
11154169833
128aa691a4
135117103a
14305579c8
151d040caa
hex1305bbcc

319142860 has 24 divisors (see below), whose sum is σ = 679383936. Its totient is φ = 125907840.

The previous prime is 319142827. The next prime is 319142869. The reversal of 319142860 is 68241913.

319142860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (319142869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107836 + ... + 110755.

It is an arithmetic number, because the mean of its divisors is an integer number (28307664).

Almost surely, 2319142860 is an apocalyptic number.

It is an amenable number.

319142860 is an abundant number, since it is smaller than the sum of its proper divisors (360241076).

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

319142860 is a wasteful number, since it uses less digits than its factorization.

319142860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218673 (or 218671 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 319142860 is about 17864.5699640378. The cubic root of 319142860 is about 683.3791289290.

The spelling of 319142860 in words is "three hundred nineteen million, one hundred forty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 218591 437182 874364 1092955 2185910 4371820 15957143 31914286 63828572 79785715 159571430 319142860