Base | Representation |
---|---|
bin | 10101100000011… |
… | …11110111010110 |
3 | 110120111021210020 |
4 | 22300033313112 |
5 | 332141420204 |
6 | 25523010010 |
7 | 4320354663 |
oct | 1260176726 |
9 | 416437706 |
10 | 180420054 |
11 | 9292a291 |
12 | 50509906 |
13 | 2b4c0139 |
14 | 19d66a6a |
15 | 10c8cbd9 |
hex | ac0fdd6 |
180420054 has 32 divisors (see below), whose sum is σ = 365420160. Its totient is φ = 59381952.
The previous prime is 180420047. The next prime is 180420061. The reversal of 180420054 is 450024081.
It is an interprime number because it is at equal distance from previous prime (180420047) and next prime (180420061).
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, 188842 + ... + 189794.
It is an arithmetic number, because the mean of its divisors is an integer number (11419380).
Almost surely, 2180420054 is an apocalyptic number.
180420054 is an abundant number, since it is smaller than the sum of its proper divisors (185000106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180420054 is a wasteful number, since it uses less digits than its factorization.
180420054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1324.
The product of its (nonzero) digits is 1280, while the sum is 24.
The square root of 180420054 is about 13432.0532309845. The cubic root of 180420054 is about 565.0604827308.
The spelling of 180420054 in words is "one hundred eighty million, four hundred twenty thousand, fifty-four".
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