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313074489 = 37131146793
BaseRepresentation
bin10010101010010…
…010001100111001
3210211002211110110
4102222102030321
51120121340424
651022134533
710521042420
oct2252221471
9724084413
10313074489
111507a4552
1288a21449
134cb27ba0
142d8182b7
151c742c29
hex12a92339

313074489 has 16 divisors (see below), whose sum is σ = 513763712. Its totient is φ = 165138048.

The previous prime is 313074481. The next prime is 313074497. The reversal of 313074489 is 984470313.

It is an interprime number because it is at equal distance from previous prime (313074481) and next prime (313074497).

It is not a de Polignac number, because 313074489 - 23 = 313074481 is a prime.

It is a super-2 number, since 2×3130744892 = 196031271325222242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313074481) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 573124 + ... + 573669.

It is an arithmetic number, because the mean of its divisors is an integer number (32110232).

Almost surely, 2313074489 is an apocalyptic number.

313074489 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

313074489 is a deficient number, since it is larger than the sum of its proper divisors (200689223).

313074489 is a wasteful number, since it uses less digits than its factorization.

313074489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146816.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 313074489 is about 17693.9110713262. The cubic root of 313074489 is about 679.0199904029.

The spelling of 313074489 in words is "three hundred thirteen million, seventy-four thousand, four hundred eighty-nine".

Divisors: 1 3 7 13 21 39 91 273 1146793 3440379 8027551 14908309 24082653 44724927 104358163 313074489