Base | Representation |
---|---|
bin | 1011011011111… |
… | …1101110001000 |
3 | 10100021012010102 |
4 | 2312333232020 |
5 | 44240034313 |
6 | 4432104532 |
7 | 1121514515 |
oct | 266775610 |
9 | 110235112 |
10 | 47971208 |
11 | 2509552a |
12 | 14095148 |
13 | 9c27b3c |
14 | 652a30c |
15 | 4328a58 |
hex | 2dbfb88 |
47971208 has 16 divisors (see below), whose sum is σ = 91860480. Its totient is φ = 23475088.
The previous prime is 47971207. The next prime is 47971211. The reversal of 47971208 is 80217974.
It is not an unprimeable number, because it can be changed into a prime (47971207) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63416 + ... + 64167.
It is an arithmetic number, because the mean of its divisors is an integer number (5741280).
Almost surely, 247971208 is an apocalyptic number.
It is an amenable number.
47971208 is a deficient number, since it is larger than the sum of its proper divisors (43889272).
47971208 is a wasteful number, since it uses less digits than its factorization.
47971208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127636 (or 127632 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 38.
The square root of 47971208 is about 6926.1250349672. The cubic root of 47971208 is about 363.3514393992.
The spelling of 47971208 in words is "forty-seven million, nine hundred seventy-one thousand, two hundred eight".
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