Base | Representation |
---|---|
bin | 1000001101111… |
… | …11011110010111 |
3 | 11210201121021000 |
4 | 10012333132113 |
5 | 120122113334 |
6 | 10501354343 |
7 | 1464665160 |
oct | 406773627 |
9 | 153647230 |
10 | 68941719 |
11 | 35a08a30 |
12 | 1b1089b3 |
13 | 1138ac22 |
14 | 9228767 |
15 | 60bc299 |
hex | 41bf797 |
68941719 has 32 divisors (see below), whose sum is σ = 127342080. Its totient is φ = 35812800.
The previous prime is 68941703. The next prime is 68941751. The reversal of 68941719 is 91714986.
It is a happy number.
It is not a de Polignac number, because 68941719 - 24 = 68941703 is a prime.
It is a super-2 number, since 2×689417192 = 9505921237349922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68941219) 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 31 ways as a sum of consecutive naturals, for example, 14502 + ... + 18659.
It is an arithmetic number, because the mean of its divisors is an integer number (3979440).
Almost surely, 268941719 is an apocalyptic number.
68941719 is a deficient number, since it is larger than the sum of its proper divisors (58400361).
68941719 is a wasteful number, since it uses less digits than its factorization.
68941719 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33188 (or 33182 counting only the distinct ones).
The product of its digits is 108864, while the sum is 45.
The square root of 68941719 is about 8303.1150178713. The cubic root of 68941719 is about 410.0410805556.
The spelling of 68941719 in words is "sixty-eight million, nine hundred forty-one thousand, seven hundred nineteen".
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