Base | Representation |
---|---|
bin | 1011001000101001… |
… | …0011111101111000 |
3 | 21201022102100120100 |
4 | 2302022103331320 |
5 | 22110144011142 |
6 | 1212333355400 |
7 | 134033325462 |
oct | 26212237570 |
9 | 7638370510 |
10 | 2989047672 |
11 | 12a426a836 |
12 | 6b5038b60 |
13 | 38834b380 |
14 | 204d95132 |
15 | 12762db4c |
hex | b2293f78 |
2989047672 has 96 divisors (see below), whose sum is σ = 8734078080. Its totient is φ = 918017280.
The previous prime is 2989047671. The next prime is 2989047689. The reversal of 2989047672 is 2767409892.
2989047672 is a `hidden beast` number, since 29 + 89 + 0 + 476 + 72 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2989047671) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 565522 + ... + 570782.
It is an arithmetic number, because the mean of its divisors is an integer number (90979980).
Almost surely, 22989047672 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2989047672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4367039040).
2989047672 is an abundant number, since it is smaller than the sum of its proper divisors (5745030408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2989047672 is a wasteful number, since it uses less digits than its factorization.
2989047672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5893 (or 5886 counting only the distinct ones).
The product of its (nonzero) digits is 3048192, while the sum is 54.
The square root of 2989047672 is about 54672.1837134754. The cubic root of 2989047672 is about 1440.4923200879.
The spelling of 2989047672 in words is "two billion, nine hundred eighty-nine million, forty-seven thousand, six hundred seventy-two".
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