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316447980 = 22355274133
BaseRepresentation
bin10010110111001…
…001110011101100
3211001110020000120
4102313021303230
51122002313410
651222324540
710561522602
oct2267116354
9731406016
10316447980
11152699062
1289b89750
1350739534
1430055872
151cbac570
hex12dc9cec

316447980 has 24 divisors (see below), whose sum is σ = 886054512. Its totient is φ = 84386112.

The previous prime is 316447973. The next prime is 316447981. The reversal of 316447980 is 89744613.

It is not an unprimeable number, because it can be changed into a prime (316447981) 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, 2637007 + ... + 2637126.

It is an arithmetic number, because the mean of its divisors is an integer number (36918938).

Almost surely, 2316447980 is an apocalyptic number.

316447980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316447980 is an abundant number, since it is smaller than the sum of its proper divisors (569606532).

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

316447980 is a wasteful number, since it uses less digits than its factorization.

316447980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274145 (or 5274143 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 316447980 is about 17788.9847939673. The cubic root of 316447980 is about 681.4501779107.

The spelling of 316447980 in words is "three hundred sixteen million, four hundred forty-seven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5274133 10548266 15822399 21096532 26370665 31644798 52741330 63289596 79111995 105482660 158223990 316447980