Base | Representation |
---|---|
bin | 1110101011000… |
… | …11110010101100 |
3 | 22120121201200011 |
4 | 13111203302230 |
5 | 223002422030 |
6 | 20114143004 |
7 | 3023160133 |
oct | 725436254 |
9 | 276551604 |
10 | 123092140 |
11 | 63533a46 |
12 | 35281a64 |
13 | 1c66a4b2 |
14 | 124c291a |
15 | ac16b2a |
hex | 7563cac |
123092140 has 24 divisors (see below), whose sum is σ = 258903792. Its totient is φ = 49158720.
The previous prime is 123092131. The next prime is 123092141. The reversal of 123092140 is 41290321.
It is not an unprimeable number, because it can be changed into a prime (123092141) 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, 8995 + ... + 18085.
It is an arithmetic number, because the mean of its divisors is an integer number (10787658).
Almost surely, 2123092140 is an apocalyptic number.
123092140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
123092140 is an abundant number, since it is smaller than the sum of its proper divisors (135811652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123092140 is a wasteful number, since it uses less digits than its factorization.
123092140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9777 (or 9775 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 22.
The square root of 123092140 is about 11094.6897207628. The cubic root of 123092140 is about 497.4431338250.
The spelling of 123092140 in words is "one hundred twenty-three million, ninety-two thousand, one hundred forty".
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