Base | Representation |
---|---|
bin | 1000001101111… |
… | …11101101101001 |
3 | 11210201122121020 |
4 | 10012333231221 |
5 | 120122131242 |
6 | 10501403053 |
7 | 1465001055 |
oct | 406775551 |
9 | 153648536 |
10 | 68942697 |
11 | 35a0973a |
12 | 1b109489 |
13 | 1138b4c5 |
14 | 9228c65 |
15 | 60bc6ec |
hex | 41bfb69 |
68942697 has 12 divisors (see below), whose sum is σ = 97017840. Its totient is φ = 43542072.
The previous prime is 68942677. The next prime is 68942723. The reversal of 68942697 is 79624986.
It is a happy number.
It is not a de Polignac number, because 68942697 - 211 = 68940649 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68942617) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30747 + ... + 32912.
It is an arithmetic number, because the mean of its divisors is an integer number (8084820).
Almost surely, 268942697 is an apocalyptic number.
It is an amenable number.
68942697 is a deficient number, since it is larger than the sum of its proper divisors (28075143).
68942697 is a wasteful number, since it uses less digits than its factorization.
68942697 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63700 (or 63681 counting only the distinct ones).
The product of its digits is 1306368, while the sum is 51.
The square root of 68942697 is about 8303.1739112221. The cubic root of 68942697 is about 410.0430194797.
It can be divided in two parts, 6894 and 2697, that added together give a triangular number (9591 = T138).
The spelling of 68942697 in words is "sixty-eight million, nine hundred forty-two thousand, six hundred ninety-seven".
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