Base | Representation |
---|---|
bin | 1010111110001001… |
… | …1001101000011000 |
3 | 21121020121001121101 |
4 | 2233202121220120 |
5 | 22012411440210 |
6 | 1204122121144 |
7 | 132660230164 |
oct | 25742315030 |
9 | 7536531541 |
10 | 2945030680 |
11 | 1281436159 |
12 | 6a23501b4 |
13 | 37c1a9307 |
14 | 1dd1b7ca4 |
15 | 123836a3a |
hex | af899a18 |
2945030680 has 16 divisors (see below), whose sum is σ = 6626319120. Its totient is φ = 1178012256.
The previous prime is 2945030629. The next prime is 2945030681. The reversal of 2945030680 is 860305492.
It is a super-2 number, since 2×29450306802 = 17346411412282524800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2945030681) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36812844 + ... + 36812923.
It is an arithmetic number, because the mean of its divisors is an integer number (414144945).
Almost surely, 22945030680 is an apocalyptic number.
2945030680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2945030680 is an abundant number, since it is smaller than the sum of its proper divisors (3681288440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2945030680 is a wasteful number, since it uses less digits than its factorization.
2945030680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73625778 (or 73625774 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 37.
The square root of 2945030680 is about 54268.1368760712. The cubic root of 2945030680 is about 1433.3863832297.
The spelling of 2945030680 in words is "two billion, nine hundred forty-five million, thirty thousand, six hundred eighty".
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