Base | Representation |
---|---|
bin | 110010011001… |
… | …000110010111 |
3 | 220212010201112 |
4 | 302121012113 |
5 | 11340210012 |
6 | 1151045235 |
7 | 220166066 |
oct | 62310627 |
9 | 26763645 |
10 | 13210007 |
11 | 7502968 |
12 | 451081b |
13 | 2976995 |
14 | 1a7c1dd |
15 | 125e122 |
hex | c99197 |
13210007 has 4 divisors (see below), whose sum is σ = 13391040. Its totient is φ = 13028976.
The previous prime is 13209991. The next prime is 13210013. The reversal of 13210007 is 70001231.
13210007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70001231 = 547 ⋅127973.
It is a cyclic number.
It is not a de Polignac number, because 13210007 - 24 = 13209991 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13209973 and 13210000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13210097) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90407 + ... + 90552.
It is an arithmetic number, because the mean of its divisors is an integer number (3347760).
Almost surely, 213210007 is an apocalyptic number.
13210007 is a deficient number, since it is larger than the sum of its proper divisors (181033).
13210007 is an equidigital number, since it uses as much as digits as its factorization.
13210007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181032.
The product of its (nonzero) digits is 42, while the sum is 14.
The square root of 13210007 is about 3634.5573320557. The cubic root of 13210007 is about 236.3928568725.
Adding to 13210007 its reverse (70001231), we get a palindrome (83211238).
The spelling of 13210007 in words is "thirteen million, two hundred ten thousand, seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •