Base | Representation |
---|---|
bin | 10010111010110100… |
… | …101010011100000000 |
3 | 1221102201211010221000 |
4 | 102322310222130000 |
5 | 313100421033142 |
6 | 13155432332000 |
7 | 1316256106542 |
oct | 227264523400 |
9 | 57381733830 |
10 | 20314236672 |
11 | 8684947754 |
12 | 3b2b244000 |
13 | 1bb981b7b2 |
14 | da9d23692 |
15 | 7dd63d14c |
hex | 4bad2a700 |
20314236672 has 72 divisors (see below), whose sum is σ = 60072792080. Its totient is φ = 6771409920.
The previous prime is 20314236671. The next prime is 20314236713. The reversal of 20314236672 is 27663241302.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20314236671) 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, 1462579 + ... + 1476402.
Almost surely, 220314236672 is an apocalyptic number.
It is an amenable number.
20314236672 is an abundant number, since it is smaller than the sum of its proper divisors (39758555408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20314236672 is an equidigital number, since it uses as much as digits as its factorization.
20314236672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2939006 (or 2938986 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 36.
Adding to 20314236672 its reverse (27663241302), we get a palindrome (47977477974).
The spelling of 20314236672 in words is "twenty billion, three hundred fourteen million, two hundred thirty-six thousand, six hundred seventy-two".
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