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315233153 = 868136313
BaseRepresentation
bin10010110010100…
…001001110000001
3210222011111120222
4102302201032001
51121144430103
651140312425
710545303044
oct2262411601
9728144528
10315233153
11151a39374
12896a2715
13504025c1
142dc1ac5b
151ca1c638
hex12ca1381

315233153 has 4 divisors (see below), whose sum is σ = 315278148. Its totient is φ = 315188160.

The previous prime is 315233143. The next prime is 315233167. The reversal of 315233153 is 351332513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147064129 + 168169024 = 12127^2 + 12968^2 .

It is a cyclic number.

It is not a de Polignac number, because 315233153 - 24 = 315233137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315233143) 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 in 3 ways as a sum of consecutive naturals, for example, 9476 + ... + 26837.

It is an arithmetic number, because the mean of its divisors is an integer number (78819537).

Almost surely, 2315233153 is an apocalyptic number.

It is an amenable number.

315233153 is a deficient number, since it is larger than the sum of its proper divisors (44995).

315233153 is an equidigital number, since it uses as much as digits as its factorization.

315233153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44994.

The product of its digits is 4050, while the sum is 26.

The square root of 315233153 is about 17754.8064759940. The cubic root of 315233153 is about 680.5770426271.

Adding to 315233153 its reverse (351332513), we get a palindrome (666565666).

The spelling of 315233153 in words is "three hundred fifteen million, two hundred thirty-three thousand, one hundred fifty-three".

Divisors: 1 8681 36313 315233153