Base | Representation |
---|---|
bin | 1011011011111… |
… | …1111110111110 |
3 | 10100021020121100 |
4 | 2312333332332 |
5 | 44240103121 |
6 | 4432113530 |
7 | 1121520615 |
oct | 266777676 |
9 | 110236540 |
10 | 47972286 |
11 | 2509631a |
12 | 140958a6 |
13 | 9c2848b |
14 | 652a87c |
15 | 4329026 |
hex | 2dbffbe |
47972286 has 24 divisors (see below), whose sum is σ = 105406704. Its totient is φ = 15765120.
The previous prime is 47972279. The next prime is 47972297. The reversal of 47972286 is 68227974.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17491 + ... + 20046.
It is an arithmetic number, because the mean of its divisors is an integer number (4391946).
Almost surely, 247972286 is an apocalyptic number.
47972286 is an abundant number, since it is smaller than the sum of its proper divisors (57434418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47972286 is a wasteful number, since it uses less digits than its factorization.
47972286 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37616 (or 37613 counting only the distinct ones).
The product of its digits is 338688, while the sum is 45.
The square root of 47972286 is about 6926.2028558222. The cubic root of 47972286 is about 363.3541611007.
The spelling of 47972286 in words is "forty-seven million, nine hundred seventy-two thousand, two hundred eighty-six".
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