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316013620 = 225131215437
BaseRepresentation
bin10010110101011…
…111110000110100
3211000122011012011
4102311133300310
51121344413440
651205134004
710555033336
oct2265376064
9730564164
10316013620
1115242178a
12899ba304
1350616910
142dd81456
151cb239ea
hex12d5fc34

316013620 has 24 divisors (see below), whose sum is σ = 714677544. Its totient is φ = 116681856.

The previous prime is 316013591. The next prime is 316013623. The reversal of 316013620 is 26310613.

It can be written as a sum of positive squares in 4 ways, for example, as 3006756 + 313006864 = 1734^2 + 17692^2 .

It is a junction number, because it is equal to n+sod(n) for n = 316013591 and 316013600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316013623) 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, 607459 + ... + 607978.

It is an arithmetic number, because the mean of its divisors is an integer number (29778231).

Almost surely, 2316013620 is an apocalyptic number.

It is an amenable number.

316013620 is an abundant number, since it is smaller than the sum of its proper divisors (398663924).

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

316013620 is a wasteful number, since it uses less digits than its factorization.

316013620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215459 (or 1215457 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 316013620 is about 17776.7719229336. The cubic root of 316013620 is about 681.1382464613.

The spelling of 316013620 in words is "three hundred sixteen million, thirteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1215437 2430874 4861748 6077185 12154370 15800681 24308740 31601362 63202724 79003405 158006810 316013620