Base | Representation |
---|---|
bin | 1011010111111… |
… | …1011111100000 |
3 | 10022202211020201 |
4 | 2311333133200 |
5 | 44203130003 |
6 | 4422314544 |
7 | 1116340516 |
oct | 265773740 |
9 | 108684221 |
10 | 47708128 |
11 | 24a25906 |
12 | 13b88a54 |
13 | 9b65180 |
14 | 649c4b6 |
15 | 42c5b1d |
hex | 2d7f7e0 |
47708128 has 48 divisors (see below), whose sum is σ = 102601296. Its totient is φ = 21703680.
The previous prime is 47708123. The next prime is 47708131. The reversal of 47708128 is 82180774.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47708123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29583 + ... + 31153.
It is an arithmetic number, because the mean of its divisors is an integer number (2137527).
Almost surely, 247708128 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47708128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51300648).
47708128 is an abundant number, since it is smaller than the sum of its proper divisors (54893168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47708128 is a wasteful number, since it uses less digits than its factorization.
47708128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1667 (or 1659 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 37.
The square root of 47708128 is about 6907.1070644663. The cubic root of 47708128 is about 362.6860001468.
The spelling of 47708128 in words is "forty-seven million, seven hundred eight thousand, one hundred twenty-eight".
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