Base | Representation |
---|---|
bin | 1110110001001… |
… | …10000101001110 |
3 | 22122010011022121 |
4 | 13120212011032 |
5 | 223203403300 |
6 | 20143203154 |
7 | 3033013234 |
oct | 730460516 |
9 | 278104277 |
10 | 123887950 |
11 | 63a2793a |
12 | 355a64ba |
13 | 1c8887a4 |
14 | 1264c954 |
15 | ad2281a |
hex | 762614e |
123887950 has 48 divisors (see below), whose sum is σ = 236636640. Its totient is φ = 48240000.
The previous prime is 123887947. The next prime is 123887957. The reversal of 123887950 is 59788321.
It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 123887897 and 123887906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123887957) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460416 + ... + 460684.
It is an arithmetic number, because the mean of its divisors is an integer number (4929930).
Almost surely, 2123887950 is an apocalyptic number.
123887950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123887950 is a deficient number, since it is larger than the sum of its proper divisors (112748690).
123887950 is a wasteful number, since it uses less digits than its factorization.
123887950 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 493 (or 488 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 43.
The square root of 123887950 is about 11130.4963950401. The cubic root of 123887950 is about 498.5128478087.
The spelling of 123887950 in words is "one hundred twenty-three million, eight hundred eighty-seven thousand, nine hundred fifty".
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