Base | Representation |
---|---|
bin | 1011010011000… |
… | …1101001100000 |
3 | 10022011121212112 |
4 | 2310301221200 |
5 | 44112424110 |
6 | 4411414452 |
7 | 1113542111 |
oct | 264615140 |
9 | 108147775 |
10 | 47389280 |
11 | 248282a4 |
12 | 13a54428 |
13 | 9a82cc3 |
14 | 6418208 |
15 | 4261405 |
hex | 2d31a60 |
47389280 has 24 divisors (see below), whose sum is σ = 111957552. Its totient is φ = 18955648.
The previous prime is 47389273. The next prime is 47389289. The reversal of 47389280 is 8298374.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47389289) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147932 + ... + 148251.
It is an arithmetic number, because the mean of its divisors is an integer number (4664898).
Almost surely, 247389280 is an apocalyptic number.
47389280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47389280 is an abundant number, since it is smaller than the sum of its proper divisors (64568272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47389280 is a wasteful number, since it uses less digits than its factorization.
47389280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 296198 (or 296190 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 41.
The square root of 47389280 is about 6883.9872167226. The cubic root of 47389280 is about 361.8762129790.
The spelling of 47389280 in words is "forty-seven million, three hundred eighty-nine thousand, two hundred eighty".
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