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315793061 = 2295412549
BaseRepresentation
bin10010110100101…
…001111010100101
3211000012221122022
4102310221322211
51121320334221
651200312525
710553124323
oct2264517245
9730187568
10315793061
11152291001
1289912745
135056a3cc
142dd24d13
151cacd4ab
hex12d29ea5

315793061 has 8 divisors (see below), whose sum is σ = 317883000. Its totient is φ = 313709760.

The previous prime is 315793057. The next prime is 315793069. The reversal of 315793061 is 160397513.

It can be written as a sum of positive squares in 4 ways, for example, as 179720836 + 136072225 = 13406^2 + 11665^2 .

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 315793061 - 22 = 315793057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315793069) 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, 122615 + ... + 125163.

It is an arithmetic number, because the mean of its divisors is an integer number (39735375).

Almost surely, 2315793061 is an apocalyptic number.

It is an amenable number.

315793061 is a deficient number, since it is larger than the sum of its proper divisors (2089939).

315793061 is a wasteful number, since it uses less digits than its factorization.

315793061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 315793061 is about 17770.5672672540. The cubic root of 315793061 is about 680.9797447118.

The spelling of 315793061 in words is "three hundred fifteen million, seven hundred ninety-three thousand, sixty-one".

Divisors: 1 229 541 2549 123889 583721 1379009 315793061