Base | Representation |
---|---|
bin | 1011011000000… |
… | …0100110000010 |
3 | 10022210001102220 |
4 | 2312000212002 |
5 | 44203301032 |
6 | 4422351510 |
7 | 1116356625 |
oct | 266004602 |
9 | 108701386 |
10 | 47712642 |
11 | 24a2923a |
12 | 13b8b596 |
13 | 9b67243 |
14 | 649ddbc |
15 | 42c712c |
hex | 2d80982 |
47712642 has 32 divisors (see below), whose sum is σ = 101347200. Its totient is φ = 14923008.
The previous prime is 47712641. The next prime is 47712653. The reversal of 47712642 is 24621774.
It is not an unprimeable number, because it can be changed into a prime (47712641) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51459 + ... + 52377.
It is an arithmetic number, because the mean of its divisors is an integer number (3167100).
Almost surely, 247712642 is an apocalyptic number.
47712642 is an abundant number, since it is smaller than the sum of its proper divisors (53634558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47712642 is a wasteful number, since it uses less digits than its factorization.
47712642 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1450.
The product of its digits is 18816, while the sum is 33.
The square root of 47712642 is about 6907.4338216157. The cubic root of 47712642 is about 362.6974385399.
The spelling of 47712642 in words is "forty-seven million, seven hundred twelve thousand, six hundred forty-two".
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