Base | Representation |
---|---|
bin | 101010010011010000… |
… | …000110100101101010 |
3 | 11100020102000102122200 |
4 | 222103100012211222 |
5 | 1221010024120002 |
6 | 32510555201030 |
7 | 3165360601551 |
oct | 522320064552 |
9 | 140212012580 |
10 | 45420145002 |
11 | 18298540221 |
12 | 8977146176 |
13 | 438ac86b5b |
14 | 22ac398d98 |
15 | 12ac780b1c |
hex | a9340696a |
45420145002 has 24 divisors (see below), whose sum is σ = 99313165380. Its totient is φ = 15001148160.
The previous prime is 45420144989. The next prime is 45420145009. The reversal of 45420145002 is 20054102454.
45420145002 is a `hidden beast` number, since 4 + 5 + 4 + 201 + 450 + 0 + 2 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 42604675281 + 2815469721 = 206409^2 + 53061^2 .
It is not an unprimeable number, because it can be changed into a prime (45420145009) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11572999 + ... + 11576922.
Almost surely, 245420145002 is an apocalyptic number.
45420145002 is an abundant number, since it is smaller than the sum of its proper divisors (53893020378).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45420145002 is a wasteful number, since it uses less digits than its factorization.
45420145002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23150038 (or 23150035 counting only the distinct ones).
The product of its (nonzero) digits is 6400, while the sum is 27.
Adding to 45420145002 its reverse (20054102454), we get a palindrome (65474247456).
The spelling of 45420145002 in words is "forty-five billion, four hundred twenty million, one hundred forty-five thousand, two".
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