Base | Representation |
---|---|
bin | 110010010111110110… |
… | …100001000010101001 |
3 | 12011121102201101221012 |
4 | 302113312201002221 |
5 | 1341232314231111 |
6 | 40503005353305 |
7 | 3623222052440 |
oct | 622766410251 |
9 | 164542641835 |
10 | 54087258281 |
11 | 20a35935761 |
12 | a595868835 |
13 | 513c793454 |
14 | 28914b9d57 |
15 | 161860448b |
hex | c97da10a9 |
54087258281 has 12 divisors (see below), whose sum is σ = 62606420352. Its totient is φ = 45773628264.
The previous prime is 54087258241. The next prime is 54087258289. The reversal of 54087258281 is 18285278045.
It is a de Polignac number, because none of the positive numbers 2k-54087258281 is a prime.
It is a super-2 number, since 2×540872582812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (54087258289) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575345 + ... + 662718.
It is an arithmetic number, because the mean of its divisors is an integer number (5217201696).
Almost surely, 254087258281 is an apocalyptic number.
It is an amenable number.
54087258281 is a deficient number, since it is larger than the sum of its proper divisors (8519162071).
54087258281 is an equidigital number, since it uses as much as digits as its factorization.
54087258281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1238228 (or 1238149 counting only the distinct ones).
The product of its (nonzero) digits is 1433600, while the sum is 50.
The spelling of 54087258281 in words is "fifty-four billion, eighty-seven million, two hundred fifty-eight thousand, two hundred eighty-one".
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