Base | Representation |
---|---|
bin | 111001100111… |
… | …010010100100 |
3 | 1001102022121120 |
4 | 321213102210 |
5 | 12331300030 |
6 | 1255413540 |
7 | 242242323 |
oct | 71472244 |
9 | 31368546 |
10 | 15103140 |
11 | 8586238 |
12 | 50842b0 |
13 | 318a590 |
14 | 20120ba |
15 | 14d5010 |
hex | e674a4 |
15103140 has 144 divisors (see below), whose sum is σ = 49100352. Its totient is φ = 3446784.
The previous prime is 15103133. The next prime is 15103159. The reversal of 15103140 is 4130151.
15103140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225387 + ... + 225453.
Almost surely, 215103140 is an apocalyptic number.
15103140 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 15103140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24550176).
15103140 is an abundant number, since it is smaller than the sum of its proper divisors (33997212).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15103140 is a wasteful number, since it uses less digits than its factorization.
15103140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 126 (or 107 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 15103140 is about 3886.2758522781. The cubic root of 15103140 is about 247.1851726007.
Adding to 15103140 its reverse (4130151), we get a palindrome (19233291).
The spelling of 15103140 in words is "fifteen million, one hundred three thousand, one hundred forty".
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