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316242540 = 223251756903
BaseRepresentation
bin10010110110010…
…111101001101100
3211001001210012200
4102312113221230
51121424230130
651214101500
710560005625
oct2266275154
9731053180
10316242540
11152568779
1289aaa890
1350696b83
1430000a4c
151cb6b760
hex12d97a6c

316242540 has 36 divisors (see below), whose sum is σ = 959269584. Its totient is φ = 84331296.

The previous prime is 316242539. The next prime is 316242541. The reversal of 316242540 is 45242613.

316242540 is a `hidden beast` number, since 31 + 624 + 2 + 5 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (316242539) and next prime (316242541).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (316242541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 878272 + ... + 878631.

Almost surely, 2316242540 is an apocalyptic number.

316242540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316242540 is an abundant number, since it is smaller than the sum of its proper divisors (643027044).

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

316242540 is a wasteful number, since it uses less digits than its factorization.

316242540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756918 (or 1756913 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 316242540 is about 17783.2094966010. The cubic root of 316242540 is about 681.3026787533.

The spelling of 316242540 in words is "three hundred sixteen million, two hundred forty-two thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1756903 3513806 5270709 7027612 8784515 10541418 15812127 17569030 21082836 26353545 31624254 35138060 52707090 63248508 79060635 105414180 158121270 316242540