Base | Representation |
---|---|
bin | 1110110001100… |
… | …11010111101111 |
3 | 22122012220222122 |
4 | 13120303113233 |
5 | 223212124013 |
6 | 20144303155 |
7 | 3033331025 |
oct | 730632757 |
9 | 278186878 |
10 | 123942383 |
11 | 63a64824 |
12 | 35611abb |
13 | 1c8a74b6 |
14 | 12664715 |
15 | ad33a08 |
hex | 76335ef |
123942383 has 8 divisors (see below), whose sum is σ = 127497216. Its totient is φ = 120418200.
The previous prime is 123942349. The next prime is 123942391. The reversal of 123942383 is 383249321.
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 123942383 - 26 = 123942319 is a prime.
It is a super-3 number, since 3×1239423833 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123942683) 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, 668 + ... + 15758.
It is an arithmetic number, because the mean of its divisors is an integer number (15937152).
Almost surely, 2123942383 is an apocalyptic number.
123942383 is a deficient number, since it is larger than the sum of its proper divisors (3554833).
123942383 is a wasteful number, since it uses less digits than its factorization.
123942383 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15325.
The product of its digits is 31104, while the sum is 35.
The square root of 123942383 is about 11132.9413453948. The cubic root of 123942383 is about 498.5858481197.
The spelling of 123942383 in words is "one hundred twenty-three million, nine hundred forty-two thousand, three hundred eighty-three".
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