Base | Representation |
---|---|
bin | 10111010010011010… |
… | …00010010011110100 |
3 | 1012021022112220220210 |
4 | 23221031002103310 |
5 | 201101111141002 |
6 | 5424334425420 |
7 | 621552004605 |
oct | 135115022364 |
9 | 35238486823 |
10 | 12502443252 |
11 | 5336337732 |
12 | 250b062270 |
13 | 1243293a20 |
14 | 86864bdac |
15 | 4d291c96c |
hex | 2e93424f4 |
12502443252 has 96 divisors (see below), whose sum is σ = 31675795200. Its totient is φ = 3815285760.
The previous prime is 12502443221. The next prime is 12502443253. The reversal of 12502443252 is 25234420521.
It is a super-2 number, since 2×125024432522 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12502443253) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16173538 + ... + 16174310.
It is an arithmetic number, because the mean of its divisors is an integer number (329956200).
Almost surely, 212502443252 is an apocalyptic number.
12502443252 is a gapful number since it is divisible by the number (12) 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 12502443252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15837897600).
12502443252 is an abundant number, since it is smaller than the sum of its proper divisors (19173351948).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12502443252 is a wasteful number, since it uses less digits than its factorization.
12502443252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1513 (or 1511 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 30.
Adding to 12502443252 its reverse (25234420521), we get a palindrome (37736863773).
The spelling of 12502443252 in words is "twelve billion, five hundred two million, four hundred forty-three thousand, two hundred fifty-two".
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