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315893 is a prime number
BaseRepresentation
bin1001101000111110101
3121001022202
41031013311
540102033
610434245
72453654
oct1150765
9531282
10315893
111a6376
12132985
13b0a26
148319b
15638e8
hex4d1f5

315893 has 2 divisors, whose sum is σ = 315894. Its totient is φ = 315892.

The previous prime is 315883. The next prime is 315899. The reversal of 315893 is 398513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315844 + 49 = 562^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 315893 - 26 = 315829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157946 + 157947.

It is an arithmetic number, because the mean of its divisors is an integer number (157947).

2315893 is an apocalyptic number.

It is an amenable number.

315893 is a deficient number, since it is larger than the sum of its proper divisors (1).

315893 is an equidigital number, since it uses as much as digits as its factorization.

315893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 315893 is about 562.0435926154. The cubic root of 315893 is about 68.1051573667.

The spelling of 315893 in words is "three hundred fifteen thousand, eight hundred ninety-three".