Base | Representation |
---|---|
bin | 111001111100… |
… | …100011100000 |
3 | 1001120202002111 |
4 | 321330203200 |
5 | 12342041430 |
6 | 1301325104 |
7 | 243054262 |
oct | 71744340 |
9 | 31522074 |
10 | 15190240 |
11 | 863571a |
12 | 5106794 |
13 | 31bb110 |
14 | 2035b32 |
15 | 1500c2a |
hex | e7c8e0 |
15190240 has 96 divisors (see below), whose sum is σ = 39584160. Its totient is φ = 5474304.
The previous prime is 15190211. The next prime is 15190243. The reversal of 15190240 is 4209151.
15190240 is digitally balanced in base 2, because in such base 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 (15190243) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139306 + ... + 139414.
It is an arithmetic number, because the mean of its divisors is an integer number (412335).
Almost surely, 215190240 is an apocalyptic number.
15190240 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 15190240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19792080).
15190240 is an abundant number, since it is smaller than the sum of its proper divisors (24393920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15190240 is a wasteful number, since it uses less digits than its factorization.
15190240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 204 (or 196 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 15190240 is about 3897.4658433397. The cubic root of 15190240 is about 247.6594354147.
Adding to 15190240 its reverse (4209151), we get a palindrome (19399391).
The spelling of 15190240 in words is "fifteen million, one hundred ninety thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •