Base | Representation |
---|---|
bin | 1110010111000… |
… | …11111001000101 |
3 | 22101200120021221 |
4 | 13023203321011 |
5 | 221320033414 |
6 | 15542040341 |
7 | 2661662503 |
oct | 713437105 |
9 | 271616257 |
10 | 120471109 |
11 | 62003800 |
12 | 344190b1 |
13 | 1bc604a5 |
14 | 11ddd673 |
15 | a89a224 |
hex | 72e3e45 |
120471109 has 12 divisors (see below), whose sum is σ = 132688780. Its totient is φ = 109296000.
The previous prime is 120471103. The next prime is 120471203. The reversal of 120471109 is 901174021.
It can be written as a sum of positive squares in 2 ways, for example, as 22896225 + 97574884 = 4785^2 + 9878^2 .
It is not a de Polignac number, because 120471109 - 27 = 120470981 is a prime.
It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120471103) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99709 + ... + 100909.
Almost surely, 2120471109 is an apocalyptic number.
It is an amenable number.
120471109 is a deficient number, since it is larger than the sum of its proper divisors (12217671).
120471109 is a wasteful number, since it uses less digits than its factorization.
120471109 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2052 (or 2041 counting only the distinct ones).
The product of its (nonzero) digits is 504, while the sum is 25.
The square root of 120471109 is about 10975.9331721727. The cubic root of 120471109 is about 493.8870468476.
The spelling of 120471109 in words is "one hundred twenty million, four hundred seventy-one thousand, one hundred nine".
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