Base | Representation |
---|---|
bin | 111001101110… |
… | …000111010000 |
3 | 1001110201221200 |
4 | 321232013100 |
5 | 12333143323 |
6 | 1300151200 |
7 | 242416650 |
oct | 71560720 |
9 | 31421850 |
10 | 15131088 |
11 | 85a5235 |
12 | 5098500 |
13 | 319a20b |
14 | 201c360 |
15 | 14dd443 |
hex | e6e1d0 |
15131088 has 120 divisors (see below), whose sum is σ = 51300288. Its totient is φ = 4064256.
The previous prime is 15131063. The next prime is 15131089. The reversal of 15131088 is 88013151.
15131088 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15131089) 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, 16695 + ... + 17577.
Almost surely, 215131088 is an apocalyptic number.
15131088 is a gapful number since it is divisible by the number (18) 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 15131088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25650144).
15131088 is an abundant number, since it is smaller than the sum of its proper divisors (36169200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15131088 is a wasteful number, since it uses less digits than its factorization.
15131088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 921 (or 912 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 27.
The square root of 15131088 is about 3889.8699207043. The cubic root of 15131088 is about 247.3375487367.
It can be divided in two parts, 1513 and 1088, that added together give a square (2601 = 512).
The spelling of 15131088 in words is "fifteen million, one hundred thirty-one thousand, eighty-eight".
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