Base | Representation |
---|---|
bin | 1110100110000… |
… | …1010110000101 |
3 | 11021012002202012 |
4 | 3221201112011 |
5 | 111132404013 |
6 | 10024024005 |
7 | 1342220456 |
oct | 351412605 |
9 | 137162665 |
10 | 61216133 |
11 | 31611650 |
12 | 18602005 |
13 | c8b4684 |
14 | 81b712d |
15 | 55931a8 |
hex | 3a61585 |
61216133 has 32 divisors (see below), whose sum is σ = 75727872. Its totient is φ = 48787200.
The previous prime is 61216063. The next prime is 61216153. The reversal of 61216133 is 33161216.
It is a happy number.
It is not a de Polignac number, because 61216133 - 216 = 61150597 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 61216099 and 61216108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (61216153) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184778 + ... + 185108.
It is an arithmetic number, because the mean of its divisors is an integer number (2366496).
Almost surely, 261216133 is an apocalyptic number.
It is an amenable number.
61216133 is a deficient number, since it is larger than the sum of its proper divisors (14511739).
61216133 is a wasteful number, since it uses less digits than its factorization.
61216133 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 425.
The product of its digits is 648, while the sum is 23.
The square root of 61216133 is about 7824.0739388122. The cubic root of 61216133 is about 394.1140921187.
Adding to 61216133 its reverse (33161216), we get a palindrome (94377349).
The spelling of 61216133 in words is "sixty-one million, two hundred sixteen thousand, one hundred thirty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •