Base | Representation |
---|---|
bin | 1000001100100… |
… | …10010000111101 |
3 | 11210101012020120 |
4 | 10012102100331 |
5 | 120100202131 |
6 | 10453405153 |
7 | 1463264250 |
oct | 406222075 |
9 | 153335216 |
10 | 68756541 |
11 | 358a1897 |
12 | 1b0397b9 |
13 | 11324859 |
14 | 91bb097 |
15 | 6082496 |
hex | 419243d |
68756541 has 8 divisors (see below), whose sum is σ = 104771904. Its totient is φ = 39289440.
The previous prime is 68756533. The next prime is 68756557. The reversal of 68756541 is 14565786.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68756541 - 23 = 68756533 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68756493 and 68756502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68756521) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637040 + ... + 1637081.
It is an arithmetic number, because the mean of its divisors is an integer number (13096488).
Almost surely, 268756541 is an apocalyptic number.
It is an amenable number.
68756541 is a deficient number, since it is larger than the sum of its proper divisors (36015363).
68756541 is a wasteful number, since it uses less digits than its factorization.
68756541 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3274131.
The product of its digits is 201600, while the sum is 42.
The square root of 68756541 is about 8291.9564036481. The cubic root of 68756541 is about 409.6736268409.
The spelling of 68756541 in words is "sixty-eight million, seven hundred fifty-six thousand, five hundred forty-one".
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