Base | Representation |
---|---|
bin | 11000101010101111… |
… | …10001001111000000 |
3 | 1021011221220012010010 |
4 | 30111113301033000 |
5 | 204110311020100 |
6 | 10030045104520 |
7 | 646120335141 |
oct | 142527611700 |
9 | 37157805103 |
10 | 13243454400 |
11 | 5686648340 |
12 | 2697258140 |
13 | 1330961c67 |
14 | 8d8c1dac8 |
15 | 5279e1750 |
hex | 3155f13c0 |
13243454400 has 336 divisors, whose sum is σ = 48687776640. Its totient is φ = 3123302400.
The previous prime is 13243454369. The next prime is 13243454467. The reversal of 13243454400 is 445434231.
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 47 ways as a sum of consecutive naturals, for example, 1950211 + ... + 1956989.
Almost surely, 213243454400 is an apocalyptic number.
13243454400 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 13243454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24343888320).
13243454400 is an abundant number, since it is smaller than the sum of its proper divisors (35444322240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13243454400 is a wasteful number, since it uses less digits than its factorization.
13243454400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6852 (or 6837 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 30.
Adding to 13243454400 its reverse (445434231), we get a palindrome (13688888631).
The spelling of 13243454400 in words is "thirteen billion, two hundred forty-three million, four hundred fifty-four thousand, four hundred".
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