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318054940 = 22572271821
BaseRepresentation
bin10010111101010…
…010001000011100
3211011110212100121
4102331102020130
51122410224230
651321004324
710611264610
oct2275221034
9734425317
10318054940
11153596425
128a6236a4
1350b7cab8
1430353340
151cdc877a
hex12f5221c

318054940 has 24 divisors (see below), whose sum is σ = 763332192. Its totient is φ = 109047360.

The previous prime is 318054931. The next prime is 318054967. The reversal of 318054940 is 49450813.

It is a junction number, because it is equal to n+sod(n) for n = 318054896 and 318054905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135771 + ... + 1136050.

It is an arithmetic number, because the mean of its divisors is an integer number (31805508).

Almost surely, 2318054940 is an apocalyptic number.

It is an amenable number.

318054940 is an abundant number, since it is smaller than the sum of its proper divisors (445277252).

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

318054940 is a wasteful number, since it uses less digits than its factorization.

318054940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271837 (or 2271835 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 318054940 is about 17834.0948747056. The cubic root of 318054940 is about 682.6017255466.

The spelling of 318054940 in words is "three hundred eighteen million, fifty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2271821 4543642 9087284 11359105 15902747 22718210 31805494 45436420 63610988 79513735 159027470 318054940