Base | Representation |
---|---|
bin | 1110101100000… |
… | …01010110111001 |
3 | 22120211212210101 |
4 | 13112001112321 |
5 | 223020310431 |
6 | 20120515401 |
7 | 3024203164 |
oct | 726012671 |
9 | 276755711 |
10 | 123213241 |
11 | 63606a28 |
12 | 3531bb61 |
13 | 1c6b0658 |
14 | 12514adb |
15 | ac3c961 |
hex | 75815b9 |
123213241 has 8 divisors (see below), whose sum is σ = 127217664. Its totient is φ = 119256480.
The previous prime is 123213203. The next prime is 123213247. The reversal of 123213241 is 142312321.
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 not a de Polignac number, because 123213241 - 225 = 89658809 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123213247) 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, 6625 + ... + 17038.
It is an arithmetic number, because the mean of its divisors is an integer number (15902208).
Almost surely, 2123213241 is an apocalyptic number.
It is an amenable number.
123213241 is a deficient number, since it is larger than the sum of its proper divisors (4004423).
123213241 is a wasteful number, since it uses less digits than its factorization.
123213241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23831.
The product of its digits is 288, while the sum is 19.
The square root of 123213241 is about 11100.1459900309. The cubic root of 123213241 is about 497.6062125189.
Adding to 123213241 its reverse (142312321), we get a palindrome (265525562).
The spelling of 123213241 in words is "one hundred twenty-three million, two hundred thirteen thousand, two hundred forty-one".
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