Base | Representation |
---|---|
bin | 11000101011101100… |
… | …10010010101110000 |
3 | 1021012111221121221110 |
4 | 30111312102111300 |
5 | 204114333014240 |
6 | 10030532353320 |
7 | 646245334416 |
oct | 142566222560 |
9 | 37174847843 |
10 | 13251454320 |
11 | 5690111845 |
12 | 2699a75840 |
13 | 1332503340 |
14 | 8d9d032b6 |
15 | 528571c80 |
hex | 315d92570 |
13251454320 has 320 divisors, whose sum is σ = 45501087744. Its totient is φ = 3170119680.
The previous prime is 13251454319. The next prime is 13251454331. The reversal of 13251454320 is 2345415231.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21000405 + ... + 21001035.
Almost surely, 213251454320 is an apocalyptic number.
13251454320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13251454320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22750543872).
13251454320 is an abundant number, since it is smaller than the sum of its proper divisors (32249633424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13251454320 is a wasteful number, since it uses less digits than its factorization.
13251454320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 840 (or 834 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 30.
Adding to 13251454320 its reverse (2345415231), we get a palindrome (15596869551).
The spelling of 13251454320 in words is "thirteen billion, two hundred fifty-one million, four hundred fifty-four thousand, three hundred twenty".
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