Base | Representation |
---|---|
bin | 11100010111100011… |
… | …11000101101000000 |
3 | 1110022101221210010211 |
4 | 32023301320231000 |
5 | 222142340342344 |
6 | 10555132003504 |
7 | 1046261653000 |
oct | 161361705500 |
9 | 43271853124 |
10 | 15230012224 |
11 | 6505a43669 |
12 | 2b50600594 |
13 | 15893b0a6b |
14 | a469ba000 |
15 | 5e20eb334 |
hex | 38bc78b40 |
15230012224 has 224 divisors, whose sum is σ = 38360908800. Its totient is φ = 5971746816.
The previous prime is 15230012219. The next prime is 15230012249. The reversal of 15230012224 is 42221003251.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (224).
It is a junction number, because it is equal to n+sod(n) for n = 15230012195 and 15230012204.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13807257 + ... + 13808359.
Almost surely, 215230012224 is an apocalyptic number.
15230012224 is a gapful number since it is divisible by the number (14) 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 15230012224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19180454400).
15230012224 is an abundant number, since it is smaller than the sum of its proper divisors (23130896576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15230012224 is a wasteful number, since it uses less digits than its factorization.
15230012224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1190 (or 1166 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 22.
Adding to 15230012224 its reverse (42221003251), we get a palindrome (57451015475).
It can be divided in two parts, 1523001 and 2224, that added together give a square (1525225 = 12352).
The spelling of 15230012224 in words is "fifteen billion, two hundred thirty million, twelve thousand, two hundred twenty-four".
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