Base | Representation |
---|---|
bin | 11100010111100100… |
… | …11001000000000000 |
3 | 1110022102012111121101 |
4 | 32023302121000000 |
5 | 222142404111022 |
6 | 10555134504144 |
7 | 1046263043452 |
oct | 161362310000 |
9 | 43272174541 |
10 | 15230144512 |
11 | 6506023aa0 |
12 | 2b50665054 |
13 | 158942903b |
14 | a46a122d2 |
15 | 5e2125627 |
hex | 38bc99000 |
15230144512 has 52 divisors (see below), whose sum is σ = 33225448176. Its totient is φ = 6922772480.
The previous prime is 15230144477. The next prime is 15230144519. The reversal of 15230144512 is 21544103251.
It is not an unprimeable number, because it can be changed into a prime (15230144519) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123958 + ... + 214069.
Almost surely, 215230144512 is an apocalyptic number.
It is an amenable number.
15230144512 is an abundant number, since it is smaller than the sum of its proper divisors (17995303664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15230144512 is an equidigital number, since it uses as much as digits as its factorization.
15230144512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 338062 (or 338040 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 28.
Adding to 15230144512 its reverse (21544103251), we get a palindrome (36774247763).
The spelling of 15230144512 in words is "fifteen billion, two hundred thirty million, one hundred forty-four thousand, five hundred twelve".
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