Base | Representation |
---|---|
bin | 10111001100100010… |
… | …01110110100001000 |
3 | 1012010212220200111212 |
4 | 23212101032310020 |
5 | 201001010231100 |
6 | 5415415312252 |
7 | 620413356530 |
oct | 134621166410 |
9 | 35125820455 |
10 | 12453211400 |
11 | 5310571053 |
12 | 24b667b688 |
13 | 1236017156 |
14 | 861cb44c0 |
15 | 4cd445635 |
hex | 2e644ed08 |
12453211400 has 96 divisors (see below), whose sum is σ = 33312600000. Its totient is φ = 4240945920.
The previous prime is 12453211369. The next prime is 12453211403. The reversal of 12453211400 is 411235421.
It is not an unprimeable number, because it can be changed into a prime (12453211403) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178751 + ... + 238449.
It is an arithmetic number, because the mean of its divisors is an integer number (347006250).
Almost surely, 212453211400 is an apocalyptic number.
12453211400 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 12453211400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16656300000).
12453211400 is an abundant number, since it is smaller than the sum of its proper divisors (20859388600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12453211400 is a wasteful number, since it uses less digits than its factorization.
12453211400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 59871 (or 59862 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 23.
Adding to 12453211400 its reverse (411235421), we get a palindrome (12864446821).
The spelling of 12453211400 in words is "twelve billion, four hundred fifty-three million, two hundred eleven thousand, four hundred".
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