Base | Representation |
---|---|
bin | 101010001010111111… |
… | …111000001111101101 |
3 | 11022212202110101110020 |
4 | 222022333320033231 |
5 | 1220214102033341 |
6 | 32445131232353 |
7 | 3162056610630 |
oct | 521277701755 |
9 | 138782411406 |
10 | 45281674221 |
11 | 18227363063 |
12 | 89388a86b9 |
13 | 4368393894 |
14 | 2297c31c17 |
15 | 12a052c566 |
hex | a8aff83ed |
45281674221 has 16 divisors (see below), whose sum is σ = 70865529984. Its totient is φ = 25175911104.
The previous prime is 45281674169. The next prime is 45281674231. The reversal of 45281674221 is 12247618254.
It is not a de Polignac number, because 45281674221 - 221 = 45279577069 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (45281674231) 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, 29138010 + ... + 29139563.
It is an arithmetic number, because the mean of its divisors is an integer number (4429095624).
Almost surely, 245281674221 is an apocalyptic number.
It is an amenable number.
45281674221 is a deficient number, since it is larger than the sum of its proper divisors (25583855763).
45281674221 is a wasteful number, since it uses less digits than its factorization.
45281674221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58277620.
The product of its digits is 215040, while the sum is 42.
The spelling of 45281674221 in words is "forty-five billion, two hundred eighty-one million, six hundred seventy-four thousand, two hundred twenty-one".
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