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318483880 = 235111324283
BaseRepresentation
bin10010111110111…
…010110110101000
3211012021122202021
4102332322312220
51123012441010
651334114224
710615032301
oct2276726650
9735248667
10318483880
11153859720
128a7ab974
1350ca0100
14304257a8
151ce608da
hex12fbada8

318483880 has 96 divisors (see below), whose sum is σ = 846689760. Its totient is φ = 106878720.

The previous prime is 318483857. The next prime is 318483881. The reversal of 318483880 is 88384813.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (318483881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72219 + ... + 76501.

It is an arithmetic number, because the mean of its divisors is an integer number (8819685).

Almost surely, 2318483880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318483880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423344880).

318483880 is an abundant number, since it is smaller than the sum of its proper divisors (528205880).

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

318483880 is a wasteful number, since it uses less digits than its factorization.

318483880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 318483880 is about 17846.1166644175. The cubic root of 318483880 is about 682.9084478780.

The spelling of 318483880 in words is "three hundred eighteen million, four hundred eighty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 110 130 143 169 220 260 286 338 440 520 572 676 715 845 1144 1352 1430 1690 1859 2860 3380 3718 4283 5720 6760 7436 8566 9295 14872 17132 18590 21415 34264 37180 42830 47113 55679 74360 85660 94226 111358 171320 188452 222716 235565 278395 376904 445432 471130 556790 612469 723827 942260 1113580 1224938 1447654 1884520 2227160 2449876 2895308 3062345 3619135 4899752 5790616 6124690 7238270 7962097 12249380 14476540 15924194 24498760 28953080 31848388 39810485 63696776 79620970 159241940 318483880