Base | Representation |
---|---|
bin | 111111111101001100… |
… | …111111110000000101 |
3 | 20120020220112002110200 |
4 | 333331030333300011 |
5 | 2111120133130231 |
6 | 51314151041113 |
7 | 4650525026460 |
oct | 777514776005 |
9 | 216226462420 |
10 | 68672551941 |
11 | 2713a957764 |
12 | 11386370199 |
13 | 662541c126 |
14 | 34765cc2d7 |
15 | 1bbdcecbe6 |
hex | ffd33fc05 |
68672551941 has 96 divisors (see below), whose sum is σ = 124456550400. Its totient is φ = 35604126720.
The previous prime is 68672551939. The next prime is 68672551949. The reversal of 68672551941 is 14915527686.
It is a happy number.
68672551941 is a `hidden beast` number, since 6 + 8 + 67 + 25 + 519 + 41 = 666.
It is not a de Polignac number, because 68672551941 - 21 = 68672551939 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68672551949) 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 95 ways as a sum of consecutive naturals, for example, 3589840 + ... + 3608918.
It is an arithmetic number, because the mean of its divisors is an integer number (1296422400).
Almost surely, 268672551941 is an apocalyptic number.
It is an amenable number.
68672551941 is a deficient number, since it is larger than the sum of its proper divisors (55783998459).
68672551941 is a wasteful number, since it uses less digits than its factorization.
68672551941 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19239 (or 19236 counting only the distinct ones).
The product of its digits is 3628800, while the sum is 54.
The spelling of 68672551941 in words is "sixty-eight billion, six hundred seventy-two million, five hundred fifty-one thousand, nine hundred forty-one".
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