| Base | Representation |
|---|---|
| bin | 1010001111011010… |
| … | …0111101101100000 |
| 3 | 21002120201220102200 |
| 4 | 2203312213231200 |
| 5 | 21112221122030 |
| 6 | 1132440413200 |
| 7 | 125060103534 |
| oct | 24366475540 |
| 9 | 7076656380 |
| 10 | 2749004640 |
| 11 | 1190817968 |
| 12 | 648777200 |
| 13 | 34a6b3a85 |
| 14 | 1c114bbc4 |
| 15 | 111514d60 |
| hex | a3da7b60 |
2749004640 has 144 divisors (see below), whose sum is σ = 9521327088. Its totient is φ = 722101248.
The previous prime is 2749004611. The next prime is 2749004647. The reversal of 2749004640 is 464009472.
2749004640 is a `hidden beast` number, since 2 + 7 + 4 + 9 + 0 + 0 + 4 + 640 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 2749004595 and 2749004604.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2749004647) 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, 82234 + ... + 110726.
It is an arithmetic number, because the mean of its divisors is an integer number (66120327).
Almost surely, 22749004640 is an apocalyptic number.
2749004640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2749004640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4760663544).
2749004640 is an abundant number, since it is smaller than the sum of its proper divisors (6772322448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2749004640 is a wasteful number, since it uses less digits than its factorization.
2749004640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28581 (or 28570 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 36.
The square root of 2749004640 is about 52430.9511643647. The cubic root of 2749004640 is about 1400.8506123318.
The spelling of 2749004640 in words is "two billion, seven hundred forty-nine million, four thousand, six hundred forty".
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