Base | Representation |
---|---|
bin | 1000001101110… |
… | …11110111100101 |
3 | 11210200211222222 |
4 | 10012323313211 |
5 | 120121130244 |
6 | 10501202125 |
7 | 1464604130 |
oct | 406736745 |
9 | 153624888 |
10 | 68926949 |
11 | 359a8923 |
12 | 1b100345 |
13 | 113842a0 |
14 | 9223217 |
15 | 60b7bee |
hex | 41bbde5 |
68926949 has 16 divisors (see below), whose sum is σ = 85596672. Its totient is φ = 54044928.
The previous prime is 68926943. The next prime is 68926969. The reversal of 68926949 is 94962986.
It is not a de Polignac number, because 68926949 - 24 = 68926933 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68926949.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68926943) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6932 + ... + 13634.
It is an arithmetic number, because the mean of its divisors is an integer number (5349792).
Almost surely, 268926949 is an apocalyptic number.
It is an amenable number.
68926949 is a deficient number, since it is larger than the sum of its proper divisors (16669723).
68926949 is a wasteful number, since it uses less digits than its factorization.
68926949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6836.
The product of its digits is 1679616, while the sum is 53.
The square root of 68926949 is about 8302.2255449970. The cubic root of 68926949 is about 410.0117962103.
The spelling of 68926949 in words is "sixty-eight million, nine hundred twenty-six thousand, nine hundred forty-nine".
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