Base | Representation |
---|---|
bin | 1111011011011… |
… | …0110101001101 |
3 | 11111202201012020 |
4 | 3312312311031 |
5 | 113031241023 |
6 | 10231000353 |
7 | 1414020522 |
oct | 366666515 |
9 | 144681166 |
10 | 64712013 |
11 | 3358a103 |
12 | 198090b9 |
13 | 10539942 |
14 | 8847149 |
15 | 5a33de3 |
hex | 3db6d4d |
64712013 has 24 divisors (see below), whose sum is σ = 92689440. Its totient is φ = 40147200.
The previous prime is 64712003. The next prime is 64712023. The reversal of 64712013 is 31021746.
It is an interprime number because it is at equal distance from previous prime (64712003) and next prime (64712023).
It is not a de Polignac number, because 64712013 - 214 = 64695629 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64712003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87198 + ... + 87936.
It is an arithmetic number, because the mean of its divisors is an integer number (3862060).
Almost surely, 264712013 is an apocalyptic number.
It is an amenable number.
64712013 is a deficient number, since it is larger than the sum of its proper divisors (27977427).
64712013 is a wasteful number, since it uses less digits than its factorization.
64712013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 877 (or 860 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 64712013 is about 8044.3777260892. The cubic root of 64712013 is about 401.4778932704.
Adding to 64712013 its reverse (31021746), we get a palindrome (95733759).
The spelling of 64712013 in words is "sixty-four million, seven hundred twelve thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •