Base | Representation |
---|---|
bin | 110010011110101010… |
… | …000000110110100100 |
3 | 12011220101112111001012 |
4 | 302132222000312210 |
5 | 1342001030434340 |
6 | 40522204321352 |
7 | 3626106323132 |
oct | 623652006644 |
9 | 164811474035 |
10 | 54201421220 |
11 | 20a9431aaa1 |
12 | a607b43258 |
13 | 515a32559b |
14 | 28a2716752 |
15 | 1623655565 |
hex | c9ea80da4 |
54201421220 has 48 divisors (see below), whose sum is σ = 120240288000. Its totient is φ = 20466351360.
The previous prime is 54201421207. The next prime is 54201421223. The reversal of 54201421220 is 2212410245.
It is not an unprimeable number, because it can be changed into a prime (54201421223) 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, 147020 + ... + 360579.
It is an arithmetic number, because the mean of its divisors is an integer number (2505006000).
Almost surely, 254201421220 is an apocalyptic number.
It is an amenable number.
54201421220 is an abundant number, since it is smaller than the sum of its proper divisors (66038866780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54201421220 is a wasteful number, since it uses less digits than its factorization.
54201421220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 507908 (or 507906 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 23.
Adding to 54201421220 its reverse (2212410245), we get a palindrome (56413831465).
The spelling of 54201421220 in words is "fifty-four billion, two hundred one million, four hundred twenty-one thousand, two hundred twenty".
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