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318443241 = 3612935939
BaseRepresentation
bin10010111110110…
…000111011101001
3211012012121000010
4102332300323221
51123010140431
651333202133
710614502644
oct2276607351
9735177003
10318443241
11153831136
128a790349
1350c8776c
1430414a5b
151ce53846
hex12fb0ee9

318443241 has 16 divisors (see below), whose sum is σ = 433097280. Its totient is φ = 208067520.

The previous prime is 318443227. The next prime is 318443261. The reversal of 318443241 is 142344813.

It is not a de Polignac number, because 318443241 - 213 = 318435049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318443199 and 318443208.

It is not an unprimeable number, because it can be changed into a prime (318443221) 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 15 ways as a sum of consecutive naturals, for example, 50650 + ... + 56588.

It is an arithmetic number, because the mean of its divisors is an integer number (27068580).

Almost surely, 2318443241 is an apocalyptic number.

It is an amenable number.

318443241 is a deficient number, since it is larger than the sum of its proper divisors (114654039).

318443241 is a wasteful number, since it uses less digits than its factorization.

318443241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296.

The product of its digits is 9216, while the sum is 30.

The square root of 318443241 is about 17844.9780330490. The cubic root of 318443241 is about 682.8793999432.

The spelling of 318443241 in words is "three hundred eighteen million, four hundred forty-three thousand, two hundred forty-one".

Divisors: 1 3 61 183 293 879 5939 17817 17873 53619 362279 1086837 1740127 5220381 106147747 318443241