Base | Representation |
---|---|
bin | 1001001011111100010… |
… | …01010001011101001100 |
3 | 1010011202010020012111122 |
4 | 10211332021101131030 |
5 | 20132422114110440 |
6 | 401001312540112 |
7 | 31543034666252 |
oct | 4457611213514 |
9 | 1104663205448 |
10 | 315648972620 |
11 | 111958686023 |
12 | 51212251638 |
13 | 239c4c5c117 |
14 | 113c561a5d2 |
15 | 83264667b5 |
hex | 497e25174c |
315648972620 has 24 divisors (see below), whose sum is σ = 668728890144. Its totient is φ = 125142246656.
The previous prime is 315648972619. The next prime is 315648972623. The reversal of 315648972620 is 26279846513.
It is not an unprimeable number, because it can be changed into a prime (315648972623) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 69831584 + ... + 69836103.
It is an arithmetic number, because the mean of its divisors is an integer number (27863703756).
It is a 1-persistent number, because it is pandigital, but 2⋅315648972620 = 631297945240 is not.
Almost surely, 2315648972620 is an apocalyptic number.
It is an amenable number.
315648972620 is an abundant number, since it is smaller than the sum of its proper divisors (353079917524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
315648972620 is a wasteful number, since it uses less digits than its factorization.
315648972620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139667809 (or 139667807 counting only the distinct ones).
The product of its (nonzero) digits is 4354560, while the sum is 53.
The spelling of 315648972620 in words is "three hundred fifteen billion, six hundred forty-eight million, nine hundred seventy-two thousand, six hundred twenty".
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