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315445053 = 37111365563
BaseRepresentation
bin10010110011010…
…100111100111101
3210222120021021010
4102303110330331
51121223220203
651145025433
710550144610
oct2263247475
9728507233
10315445053
111520735a0
1289785279
1350477ba1
142dc74177
151ca60303
hex12cd4f3d

315445053 has 16 divisors (see below), whose sum is σ = 524376576. Its totient is φ = 163867440.

The previous prime is 315445051. The next prime is 315445061. The reversal of 315445053 is 350544513.

It is not a de Polignac number, because 315445053 - 21 = 315445051 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 315445053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315445051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682551 + ... + 683012.

It is an arithmetic number, because the mean of its divisors is an integer number (32773536).

Almost surely, 2315445053 is an apocalyptic number.

315445053 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

315445053 is a deficient number, since it is larger than the sum of its proper divisors (208931523).

315445053 is a wasteful number, since it uses less digits than its factorization.

315445053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365584.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 315445053 is about 17760.7728716968. The cubic root of 315445053 is about 680.7295032978.

Adding to 315445053 its reverse (350544513), we get a palindrome (665989566).

The spelling of 315445053 in words is "three hundred fifteen million, four hundred forty-five thousand, fifty-three".

Divisors: 1 3 7 11 21 33 77 231 1365563 4096689 9558941 15021193 28676823 45063579 105148351 315445053