Base | Representation |
---|---|
bin | 1110010110011… |
… | …01110110100110 |
3 | 22101111222110120 |
4 | 13023031312212 |
5 | 221304141323 |
6 | 15540102410 |
7 | 2661135354 |
oct | 713156646 |
9 | 271458416 |
10 | 120380838 |
11 | 61a519a6 |
12 | 34394a06 |
13 | 1bc2b386 |
14 | 11db87d4 |
15 | a87d5e3 |
hex | 72cdda6 |
120380838 has 32 divisors (see below), whose sum is σ = 249080832. Its totient is φ = 38760000.
The previous prime is 120380833. The next prime is 120380851. The reversal of 120380838 is 838083021.
It is a junction number, because it is equal to n+sod(n) for n = 120380799 and 120380808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120380833) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22963 + ... + 27713.
It is an arithmetic number, because the mean of its divisors is an integer number (7783776).
Almost surely, 2120380838 is an apocalyptic number.
120380838 is an abundant number, since it is smaller than the sum of its proper divisors (128699994).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120380838 is a wasteful number, since it uses less digits than its factorization.
120380838 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4900.
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 120380838 is about 10971.8201771629. The cubic root of 120380838 is about 493.7636567712.
The spelling of 120380838 in words is "one hundred twenty million, three hundred eighty thousand, eight hundred thirty-eight".
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