Base | Representation |
---|---|
bin | 111001110000… |
… | …111011100110 |
3 | 1001111022210011 |
4 | 321300323212 |
5 | 12334031010 |
6 | 1300320434 |
7 | 242465416 |
oct | 71607346 |
9 | 31438704 |
10 | 15142630 |
11 | 8602978 |
12 | 50a311a |
13 | 31a2549 |
14 | 2022646 |
15 | 14e1a8a |
hex | e70ee6 |
15142630 has 16 divisors (see below), whose sum is σ = 27771984. Its totient is φ = 5942560.
The previous prime is 15142613. The next prime is 15142637. The reversal of 15142630 is 3624151.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15142637) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756 + ... + 14815.
It is an arithmetic number, because the mean of its divisors is an integer number (1735749).
Almost surely, 215142630 is an apocalyptic number.
15142630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15142630 is a deficient number, since it is larger than the sum of its proper divisors (12629354).
15142630 is a wasteful number, since it uses less digits than its factorization.
15142630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28631.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 15142630 is about 3891.3532350585. The cubic root of 15142630 is about 247.4004224798.
Adding to 15142630 its reverse (3624151), we get a palindrome (18766781).
The spelling of 15142630 in words is "fifteen million, one hundred forty-two thousand, six hundred thirty".
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