Base | Representation |
---|---|
bin | 110001111111… |
… | …000101000110 |
3 | 220122201112020 |
4 | 301333011012 |
5 | 11323302210 |
6 | 1144504010 |
7 | 216243264 |
oct | 61770506 |
9 | 26581466 |
10 | 13103430 |
11 | 743a88a |
12 | 447b006 |
13 | 293a312 |
14 | 1a51434 |
15 | 123c770 |
hex | c7f146 |
13103430 has 32 divisors (see below), whose sum is σ = 33299424. Its totient is φ = 3288576.
The previous prime is 13103423. The next prime is 13103443. The reversal of 13103430 is 3430131.
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 pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12337 + ... + 13356.
It is an arithmetic number, because the mean of its divisors is an integer number (1040607).
Almost surely, 213103430 is an apocalyptic number.
13103430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13103430 is an abundant number, since it is smaller than the sum of its proper divisors (20195994).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13103430 is a wasteful number, since it uses less digits than its factorization.
13103430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25720.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 13103430 is about 3619.8660196201. The cubic root of 13103430 is about 235.7554082786.
Adding to 13103430 its reverse (3430131), we get a palindrome (16533561).
The spelling of 13103430 in words is "thirteen million, one hundred three thousand, four hundred thirty".
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