Base | Representation |
---|---|
bin | 1100111000000… |
… | …1100001010010 |
3 | 10202121212220020 |
4 | 3032001201102 |
5 | 102311223030 |
6 | 5205324310 |
7 | 1224026256 |
oct | 316014122 |
9 | 122555806 |
10 | 54007890 |
11 | 28538a22 |
12 | 16106696 |
13 | b25c741 |
14 | 725c266 |
15 | 4b1c510 |
hex | 3381852 |
54007890 has 32 divisors (see below), whose sum is σ = 133802496. Its totient is φ = 13937280.
The previous prime is 54007873. The next prime is 54007897. The reversal of 54007890 is 9870045.
It is not an unprimeable number, because it can be changed into a prime (54007897) 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, 28107 + ... + 29966.
It is an arithmetic number, because the mean of its divisors is an integer number (4181328).
Almost surely, 254007890 is an apocalyptic number.
54007890 is an abundant number, since it is smaller than the sum of its proper divisors (79794606).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54007890 is a wasteful number, since it uses less digits than its factorization.
54007890 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58114.
The product of its (nonzero) digits is 10080, while the sum is 33.
The square root of 54007890 is about 7349.0060552431. The cubic root of 54007890 is about 377.9947229184.
The spelling of 54007890 in words is "fifty-four million, seven thousand, eight hundred ninety".
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