Base | Representation |
---|---|
bin | 1011011110100000… |
… | …1111110011001000 |
3 | 21221201000220001000 |
4 | 2313220033303020 |
5 | 22302134443000 |
6 | 1225411455000 |
7 | 136226130543 |
oct | 26750176310 |
9 | 7851026030 |
10 | 3080781000 |
11 | 1341025400 |
12 | 71b8b7460 |
13 | 3a135924b |
14 | 21323385a |
15 | 1306ee000 |
hex | b7a0fcc8 |
3080781000 has 768 divisors, whose sum is σ = 12548390400. Its totient is φ = 696960000.
The previous prime is 3080780999. The next prime is 3080781007. The reversal of 3080781000 is 1870803.
It is a super-2 number, since 2×30807810002 = 18982423139922000000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (3080781007) 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 191 ways as a sum of consecutive naturals, for example, 75140980 + ... + 75141020.
It is an arithmetic number, because the mean of its divisors is an integer number (16339050).
Almost surely, 23080781000 is an apocalyptic number.
3080781000 is a gapful number since it is divisible by the number (30) 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 3080781000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6274195200).
3080781000 is an abundant number, since it is smaller than the sum of its proper divisors (9467609400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3080781000 is a wasteful number, since it uses less digits than its factorization.
3080781000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 116 (or 85 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 3080781000 is about 55504.7835776341. The cubic root of 3080781000 is about 1455.0802378963.
The spelling of 3080781000 in words is "three billion, eighty million, seven hundred eighty-one thousand".
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