Base | Representation |
---|---|
bin | 1011011110011011… |
… | …0000100101001001 |
3 | 21221200022002001000 |
4 | 2313212300211021 |
5 | 22302040002420 |
6 | 1225355245213 |
7 | 136222614510 |
oct | 26746604511 |
9 | 7850262030 |
10 | 3080390985 |
11 | 1340889381 |
12 | 71b749809 |
13 | 3a1250879 |
14 | 213171677 |
15 | 130673690 |
hex | b79b0949 |
3080390985 has 128 divisors (see below), whose sum is σ = 6386688000. Its totient is φ = 1379738880.
The previous prime is 3080390959. The next prime is 3080390987. The reversal of 3080390985 is 5890930803.
3080390985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 3080390985 - 25 = 3080390953 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 3080390985.
It is not an unprimeable number, because it can be changed into a prime (3080390987) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18445372 + ... + 18445538.
It is an arithmetic number, because the mean of its divisors is an integer number (49896000).
Almost surely, 23080390985 is an apocalyptic number.
3080390985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
3080390985 is an abundant number, since it is smaller than the sum of its proper divisors (3306297015).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3080390985 is a wasteful number, since it uses less digits than its factorization.
3080390985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 468 (or 462 counting only the distinct ones).
The product of its (nonzero) digits is 233280, while the sum is 45.
The square root of 3080390985 is about 55501.2701206017. The cubic root of 3080390985 is about 1455.0188327884.
The spelling of 3080390985 in words is "three billion, eighty million, three hundred ninety thousand, nine hundred eighty-five".
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