Base | Representation |
---|---|
bin | 110011000110100011… |
… | …001011111000011001 |
3 | 12020122000221101101211 |
4 | 303012203023320121 |
5 | 1344333401020100 |
6 | 41112433543121 |
7 | 3651514265452 |
oct | 630643137031 |
9 | 166560841354 |
10 | 54870720025 |
11 | 212a8100100 |
12 | a774114aa1 |
13 | 5235ba5794 |
14 | 292757c129 |
15 | 16622b11ba |
hex | cc68cbe19 |
54870720025 has 27 divisors (see below), whose sum is σ = 74804994943. Its totient is φ = 39896608400.
The previous prime is 54870720013. The next prime is 54870720041. The reversal of 54870720025 is 52002707845.
It is a happy number.
The square root of 54870720025 is 234245.
It is a perfect power (a square), and thus also a powerful number.
54870720025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 19753459209 + 35117260816 = 140547^2 + 187396^2 .
It is not a de Polignac number, because 54870720025 - 29 = 54870719513 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 54870720025.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12881346 + ... + 12885604.
Almost surely, 254870720025 is an apocalyptic number.
54870720025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
54870720025 is the 234245-th square number.
54870720025 is the 117123-rd centered octagonal number.
It is an amenable number.
54870720025 is a deficient number, since it is larger than the sum of its proper divisors (19934274918).
54870720025 is an frugal number, since it uses more digits than its factorization.
54870720025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8550 (or 4275 counting only the distinct ones).
The product of its (nonzero) digits is 156800, while the sum is 40.
The spelling of 54870720025 in words is "fifty-four billion, eight hundred seventy million, seven hundred twenty thousand, twenty-five".
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