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315043049 = 3137274667
BaseRepresentation
bin10010110001110…
…010110011101001
3210221210211211002
4102301302303221
51121122334144
651132244345
710543551566
oct2261626351
9727724732
10315043049
11151919562
12896106b5
1350366c09
142dbab86d
151c9d114e
hex12c72ce9

315043049 has 8 divisors (see below), whose sum is σ = 333996288. Its totient is φ = 296639280.

The previous prime is 315043039. The next prime is 315043061. The reversal of 315043049 is 940340513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315043049 - 228 = 46607593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315043019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136187 + ... + 138480.

It is an arithmetic number, because the mean of its divisors is an integer number (41749536).

Almost surely, 2315043049 is an apocalyptic number.

It is an amenable number.

315043049 is a deficient number, since it is larger than the sum of its proper divisors (18953239).

315043049 is a wasteful number, since it uses less digits than its factorization.

315043049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274735.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 315043049 is about 17749.4520760501. The cubic root of 315043049 is about 680.4402058831.

The spelling of 315043049 in words is "three hundred fifteen million, forty-three thousand, forty-nine".

Divisors: 1 31 37 1147 274667 8514677 10162679 315043049