Base | Representation |
---|---|
bin | 1011001110111… |
… | …1111100001100 |
3 | 10021122221200101 |
4 | 2303233330030 |
5 | 44030321030 |
6 | 4401540444 |
7 | 1111341334 |
oct | 263577414 |
9 | 107587611 |
10 | 47120140 |
11 | 24664071 |
12 | 13944724 |
13 | 99ba652 |
14 | 63880c4 |
15 | 420b7ca |
hex | 2ceff0c |
47120140 has 24 divisors (see below), whose sum is σ = 99121680. Its totient is φ = 18815808.
The previous prime is 47120119. The next prime is 47120147. The reversal of 47120140 is 4102174.
It is not an unprimeable number, because it can be changed into a prime (47120147) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12519 + ... + 15841.
It is an arithmetic number, because the mean of its divisors is an integer number (4130070).
Almost surely, 247120140 is an apocalyptic number.
It is an amenable number.
47120140 is an abundant number, since it is smaller than the sum of its proper divisors (52001540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47120140 is a wasteful number, since it uses less digits than its factorization.
47120140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4041 (or 4039 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 19.
The square root of 47120140 is about 6864.4111182242. The cubic root of 47120140 is about 361.1898388419.
The spelling of 47120140 in words is "forty-seven million, one hundred twenty thousand, one hundred forty".
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