Base | Representation |
---|---|
bin | 1000001100111… |
… | …00100010111011 |
3 | 11210110100000012 |
4 | 10012130202323 |
5 | 120103024101 |
6 | 10454332135 |
7 | 1463531105 |
oct | 406344273 |
9 | 153410005 |
10 | 68798651 |
11 | 35920499 |
12 | 1b05a04b |
13 | 1133aa7c |
14 | 91cc575 |
15 | 608ebbb |
hex | 419c8bb |
68798651 has 8 divisors (see below), whose sum is σ = 71555520. Its totient is φ = 66089088.
The previous prime is 68798621. The next prime is 68798657. The reversal of 68798651 is 15689786.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68798651 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 68798651.
It is not an unprimeable number, because it can be changed into a prime (68798657) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8846 + ... + 14691.
It is an arithmetic number, because the mean of its divisors is an integer number (8944440).
Almost surely, 268798651 is an apocalyptic number.
68798651 is a deficient number, since it is larger than the sum of its proper divisors (2756869).
68798651 is a wasteful number, since it uses less digits than its factorization.
68798651 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23653.
The product of its digits is 725760, while the sum is 50.
The square root of 68798651 is about 8294.4952227366. The cubic root of 68798651 is about 409.7572447556.
The spelling of 68798651 in words is "sixty-eight million, seven hundred ninety-eight thousand, six hundred fifty-one".
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