Base | Representation |
---|---|
bin | 1011010101011… |
… | …0101010101011 |
3 | 10022110022212100 |
4 | 2311112222223 |
5 | 44132302112 |
6 | 4414544443 |
7 | 1115043141 |
oct | 265265253 |
9 | 108408770 |
10 | 47540907 |
11 | 24921207 |
12 | 13b08123 |
13 | 9b0701b |
14 | 6457591 |
15 | 42912dc |
hex | 2d56aab |
47540907 has 12 divisors (see below), whose sum is σ = 72284680. Its totient is φ = 30025728.
The previous prime is 47540897. The next prime is 47540939. The reversal of 47540907 is 70904574.
It is a happy number.
It is not a de Polignac number, because 47540907 - 28 = 47540651 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47540957) 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, 138838 + ... + 139179.
Almost surely, 247540907 is an apocalyptic number.
47540907 is a deficient number, since it is larger than the sum of its proper divisors (24743773).
47540907 is a wasteful number, since it uses less digits than its factorization.
47540907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 278042 (or 278039 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 36.
The square root of 47540907 is about 6894.9914430694. The cubic root of 47540907 is about 362.2617557807.
The spelling of 47540907 in words is "forty-seven million, five hundred forty thousand, nine hundred seven".
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