Base | Representation |
---|---|
bin | 1010111100011110… |
… | …0101011000110001 |
3 | 21120202100220121211 |
4 | 2233013211120301 |
5 | 22004112012240 |
6 | 1203311320121 |
7 | 132543411265 |
oct | 25707453061 |
9 | 7522326554 |
10 | 2938000945 |
11 | 1278474660 |
12 | 69bb20041 |
13 | 37a8b76c9 |
14 | 1dc2a80a5 |
15 | 122de8bea |
hex | af1e5631 |
2938000945 has 32 divisors (see below), whose sum is σ = 4129802496. Its totient is φ = 1982668800.
The previous prime is 2938000939. The next prime is 2938000963. The reversal of 2938000945 is 5490008392.
It is a happy number.
It is not a de Polignac number, because 2938000945 - 227 = 2803783217 is a prime.
It is a super-3 number, since 3×29380009453 (a number of 29 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2938000898 and 2938000907.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 44257 + ... + 88513.
It is an arithmetic number, because the mean of its divisors is an integer number (129056328).
Almost surely, 22938000945 is an apocalyptic number.
2938000945 is the 44257-th pentagonal number.
It is an amenable number.
2938000945 is a deficient number, since it is larger than the sum of its proper divisors (1191801551).
2938000945 is a wasteful number, since it uses less digits than its factorization.
2938000945 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44361.
The product of its (nonzero) digits is 77760, while the sum is 40.
The square root of 2938000945 is about 54203.3296486480. The cubic root of 2938000945 is about 1432.2449854530.
The spelling of 2938000945 in words is "two billion, nine hundred thirty-eight million, nine hundred forty-five", and thus it is an aban number.
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