Base | Representation |
---|---|
bin | 111001101101… |
… | …111100111100 |
3 | 1001110201001020 |
4 | 321231330330 |
5 | 12333133203 |
6 | 1300144140 |
7 | 242415015 |
oct | 71557474 |
9 | 31421036 |
10 | 15130428 |
11 | 85a4795 |
12 | 5098050 |
13 | 3199b21 |
14 | 201c00c |
15 | 14dd153 |
hex | e6df3c |
15130428 has 48 divisors (see below), whose sum is σ = 36503040. Its totient is φ = 4875264.
The previous prime is 15130421. The next prime is 15130429. The reversal of 15130428 is 82403151.
It is a junction number, because it is equal to n+sod(n) for n = 15130398 and 15130407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15130421) 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, 78300 + ... + 78492.
It is an arithmetic number, because the mean of its divisors is an integer number (760480).
Almost surely, 215130428 is an apocalyptic number.
It is an amenable number.
15130428 is an abundant number, since it is smaller than the sum of its proper divisors (21372612).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15130428 is a wasteful number, since it uses less digits than its factorization.
15130428 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 386 (or 384 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 15130428 is about 3889.7850840374. The cubic root of 15130428 is about 247.3339524948. Note that the first 3 decimals are identical.
Adding to 15130428 its reverse (82403151), we get a palindrome (97533579).
The spelling of 15130428 in words is "fifteen million, one hundred thirty thousand, four hundred twenty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •