Base | Representation |
---|---|
bin | 101011111100001101… |
… | …001111011011110000 |
3 | 11111210010101021000022 |
4 | 223330031033123300 |
5 | 1233111314034410 |
6 | 33401420343012 |
7 | 3260121622043 |
oct | 537415173360 |
9 | 144703337008 |
10 | 47181002480 |
11 | 1901149a537 |
12 | 91889a4a68 |
13 | 45aba20761 |
14 | 23d81a2c5a |
15 | 1362156455 |
hex | afc34f6f0 |
47181002480 has 40 divisors (see below), whose sum is σ = 113478451200. Its totient is φ = 18221627648.
The previous prime is 47181002467. The next prime is 47181002497. The reversal of 47181002480 is 8420018174.
It is a tau number, because it is divible by the number of its divisors (40).
It is a self number, because there is not a number n which added to its sum of digits gives 47181002480.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10166000 + ... + 10170639.
It is an arithmetic number, because the mean of its divisors is an integer number (2836961280).
Almost surely, 247181002480 is an apocalyptic number.
47181002480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47181002480 is an abundant number, since it is smaller than the sum of its proper divisors (66297448720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47181002480 is a wasteful number, since it uses less digits than its factorization.
47181002480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20336681 (or 20336675 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 35.
The spelling of 47181002480 in words is "forty-seven billion, one hundred eighty-one million, two thousand, four hundred eighty".
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