Base | Representation |
---|---|
bin | 111111100011110101… |
… | …111011010011011000 |
3 | 20112011020220120110201 |
4 | 333203311323103120 |
5 | 2104232222332013 |
6 | 51204031351544 |
7 | 4634140362151 |
oct | 774365732330 |
9 | 215136816421 |
10 | 68247074008 |
11 | 26a4176a903 |
12 | 112879825b4 |
13 | 6588229c39 |
14 | 3435cb4928 |
15 | 1b967a53dd |
hex | fe3d7b4d8 |
68247074008 has 32 divisors (see below), whose sum is σ = 130958942400. Its totient is φ = 33324929568.
The previous prime is 68247073987. The next prime is 68247074009. The reversal of 68247074008 is 80047074286.
It is a super-2 number, since 2×682470740082 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68247074009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3381435 + ... + 3401557.
It is an arithmetic number, because the mean of its divisors is an integer number (4092466950).
Almost surely, 268247074008 is an apocalyptic number.
It is an amenable number.
68247074008 is a deficient number, since it is larger than the sum of its proper divisors (62711868392).
68247074008 is a wasteful number, since it uses less digits than its factorization.
68247074008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30031 (or 30027 counting only the distinct ones).
The product of its (nonzero) digits is 602112, while the sum is 46.
The spelling of 68247074008 in words is "sixty-eight billion, two hundred forty-seven million, seventy-four thousand, eight".
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