Base | Representation |
---|---|
bin | 1011001110111… |
… | …1111000110000 |
3 | 10021122221101020 |
4 | 2303233320300 |
5 | 44030314140 |
6 | 4401535440 |
7 | 1111340601 |
oct | 263577060 |
9 | 107587336 |
10 | 47119920 |
11 | 24663991 |
12 | 13944580 |
13 | 99ba513 |
14 | 6387da8 |
15 | 420b6d0 |
hex | 2cefe30 |
47119920 has 80 divisors (see below), whose sum is σ = 154677600. Its totient is φ = 11825152.
The previous prime is 47119913. The next prime is 47119949. The reversal of 47119920 is 2991174.
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1695 + ... + 9854.
It is an arithmetic number, because the mean of its divisors is an integer number (1933470).
Almost surely, 247119920 is an apocalyptic number.
47119920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47119920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77338800).
47119920 is an abundant number, since it is smaller than the sum of its proper divisors (107557680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47119920 is a wasteful number, since it uses less digits than its factorization.
47119920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11582 (or 11576 counting only the distinct ones).
The product of its (nonzero) digits is 4536, while the sum is 33.
The square root of 47119920 is about 6864.3950935243. The cubic root of 47119920 is about 361.1892767193.
The spelling of 47119920 in words is "forty-seven million, one hundred nineteen thousand, nine hundred twenty".
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