Base | Representation |
---|---|
bin | 1110101010101… |
… | …01011100100100 |
3 | 22120111202001212 |
4 | 13111111130210 |
5 | 222444032010 |
6 | 20113010552 |
7 | 3022523621 |
oct | 725253444 |
9 | 276452055 |
10 | 123033380 |
11 | 634a3888 |
12 | 35253a58 |
13 | 1c649822 |
14 | 124a9348 |
15 | ac04505 |
hex | 7555724 |
123033380 has 12 divisors (see below), whose sum is σ = 258370140. Its totient is φ = 49213344.
The previous prime is 123033367. The next prime is 123033431. The reversal of 123033380 is 83330321.
It can be written as a sum of positive squares in 2 ways, for example, as 67798756 + 55234624 = 8234^2 + 7432^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3075815 + ... + 3075854.
It is an arithmetic number, because the mean of its divisors is an integer number (21530845).
Almost surely, 2123033380 is an apocalyptic number.
123033380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
123033380 is an abundant number, since it is smaller than the sum of its proper divisors (135336760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123033380 is a wasteful number, since it uses less digits than its factorization.
123033380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6151678 (or 6151676 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 23.
The square root of 123033380 is about 11092.0412909437. The cubic root of 123033380 is about 497.3639670835.
The spelling of 123033380 in words is "one hundred twenty-three million, thirty-three thousand, three hundred eighty".
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