Base | Representation |
---|---|
bin | 101010010011010000… |
… | …010101010001000000 |
3 | 11100020102010111010021 |
4 | 222103100111101000 |
5 | 1221010033030440 |
6 | 32511000343224 |
7 | 3165361242043 |
oct | 522320252100 |
9 | 140212114107 |
10 | 45420205120 |
11 | 18298581404 |
12 | 8977174b14 |
13 | 438aca8324 |
14 | 22ac3b2c5a |
15 | 12ac79384a |
hex | a93415440 |
45420205120 has 56 divisors (see below), whose sum is σ = 110672172864. Its totient is φ = 17745563136.
The previous prime is 45420205099. The next prime is 45420205123. The reversal of 45420205120 is 2150202454.
It is not an unprimeable number, because it can be changed into a prime (45420205123) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636684 + ... + 1664203.
Almost surely, 245420205120 is an apocalyptic number.
45420205120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
45420205120 is an abundant number, since it is smaller than the sum of its proper divisors (65251967744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45420205120 is a wasteful number, since it uses less digits than its factorization.
45420205120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3300947 (or 3300937 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 25.
Adding to 45420205120 its reverse (2150202454), we get a palindrome (47570407574).
The spelling of 45420205120 in words is "forty-five billion, four hundred twenty million, two hundred five thousand, one hundred twenty".
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