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315030431444 = 22241132665951
BaseRepresentation
bin1001001010110010100…
…01101110011011010100
31010010011000100001112012
410211121101232123110
520130140242301234
6400420055243352
731521514325231
oct4453121563324
91103130301465
10315030431444
11111670513973
125107b079558
1323926a71121
1411367408788
1582dbed50ce
hex495946e6d4

315030431444 has 12 divisors (see below), whose sum is σ = 551531933568. Its totient is φ = 157449879000.

The previous prime is 315030431407. The next prime is 315030431459. The reversal of 315030431444 is 444134030513.

It is a self number, because there is not a number n which added to its sum of digits gives 315030431444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16323332 + ... + 16342619.

It is an arithmetic number, because the mean of its divisors is an integer number (45960994464).

Almost surely, 2315030431444 is an apocalyptic number.

It is an amenable number.

315030431444 is a deficient number, since it is larger than the sum of its proper divisors (236501502124).

315030431444 is a wasteful number, since it uses less digits than its factorization.

315030431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32668366 (or 32668364 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 315030431444 its reverse (444134030513), we get a palindrome (759164461957).

The spelling of 315030431444 in words is "three hundred fifteen billion, thirty million, four hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 2411 4822 9644 32665951 65331902 130663804 78757607861 157515215722 315030431444