Base | Representation |
---|---|
bin | 110101010110… |
… | …010100000111 |
3 | 222022111212010 |
4 | 311112110013 |
5 | 12040010111 |
6 | 1215425303 |
7 | 226604454 |
oct | 65262407 |
9 | 28274763 |
10 | 13985031 |
11 | 7992185 |
12 | 4825233 |
13 | 2b88688 |
14 | 1c0082b |
15 | 1363aa6 |
hex | d56507 |
13985031 has 8 divisors (see below), whose sum is σ = 18828160. Its totient is φ = 9232632.
The previous prime is 13985029. The next prime is 13985039. The reversal of 13985031 is 13058931.
It is a happy number.
13985031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13985031 - 21 = 13985029 is a prime.
It is a super-2 number, since 2×139850312 = 391162184141922, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13985031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13985039) 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, 22321 + ... + 22938.
It is an arithmetic number, because the mean of its divisors is an integer number (2353520).
Almost surely, 213985031 is an apocalyptic number.
13985031 is a deficient number, since it is larger than the sum of its proper divisors (4843129).
13985031 is a wasteful number, since it uses less digits than its factorization.
13985031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45365.
The product of its (nonzero) digits is 3240, while the sum is 30.
The square root of 13985031 is about 3739.6565350310. The cubic root of 13985031 is about 240.9282971667.
The spelling of 13985031 in words is "thirteen million, nine hundred eighty-five thousand, thirty-one".
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