Base | Representation |
---|---|
bin | 1110101010011… |
… | …11000010001101 |
3 | 22120110102001011 |
4 | 13111033002031 |
5 | 222442211432 |
6 | 20112245221 |
7 | 3022354222 |
oct | 725170215 |
9 | 276412034 |
10 | 123007117 |
11 | 63486082 |
12 | 35240811 |
13 | 1c63a89c |
14 | 1249d949 |
15 | abeb847 |
hex | 754f08d |
123007117 has 8 divisors (see below), whose sum is σ = 127048824. Its totient is φ = 119029248.
The previous prime is 123007111. The next prime is 123007127. The reversal of 123007117 is 711700321.
It can be written as a sum of positive squares in 4 ways, for example, as 47073321 + 75933796 = 6861^2 + 8714^2 .
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-123007117 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123007111) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12028 + ... + 19765.
It is an arithmetic number, because the mean of its divisors is an integer number (15881103).
Almost surely, 2123007117 is an apocalyptic number.
It is an amenable number.
123007117 is a deficient number, since it is larger than the sum of its proper divisors (4041707).
123007117 is an equidigital number, since it uses as much as digits as its factorization.
123007117 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31919.
The product of its (nonzero) digits is 294, while the sum is 22.
The square root of 123007117 is about 11090.8573609077. The cubic root of 123007117 is about 497.3285750638.
Adding to 123007117 its reverse (711700321), we get a palindrome (834707438).
The spelling of 123007117 in words is "one hundred twenty-three million, seven thousand, one hundred seventeen".
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