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315325033 = 2973148949
BaseRepresentation
bin10010110010110…
…111101001101001
3210222100011121221
4102302313221221
51121210400113
651142302041
710546134652
oct2262675151
9728304557
10315325033
11151aa1401
1289727921
135043537a
142dc42529
151ca3998d
hex12cb7a69

315325033 has 8 divisors (see below), whose sum is σ = 330669000. Its totient is φ = 300279168.

The previous prime is 315325013. The next prime is 315325039. The reversal of 315325033 is 330523513.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 127306089 + 188018944 = 11283^2 + 13712^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315325033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315324989 and 315325007.

It is not an unprimeable number, because it can be changed into a prime (315325039) 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, 72358 + ... + 76591.

It is an arithmetic number, because the mean of its divisors is an integer number (41333625).

Almost surely, 2315325033 is an apocalyptic number.

It is an amenable number.

315325033 is a deficient number, since it is larger than the sum of its proper divisors (15343967).

315325033 is a wasteful number, since it uses less digits than its factorization.

315325033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149051.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 315325033 is about 17757.3937558415. The cubic root of 315325033 is about 680.6431580762.

Adding to 315325033 its reverse (330523513), we get a palindrome (645848546).

The spelling of 315325033 in words is "three hundred fifteen million, three hundred twenty-five thousand, thirty-three".

Divisors: 1 29 73 2117 148949 4319521 10873277 315325033