Base | Representation |
---|---|
bin | 100110111110100… |
… | …1111110001110000 |
3 | 10101011001020221021 |
4 | 1031331033301300 |
5 | 10134310313130 |
6 | 333440505224 |
7 | 44260655365 |
oct | 11575176160 |
9 | 3334036837 |
10 | 1307901040 |
11 | 611304456 |
12 | 30601b214 |
13 | 17ac73354 |
14 | c59ba46c |
15 | 79c5137a |
hex | 4df4fc70 |
1307901040 has 40 divisors (see below), whose sum is σ = 3062772720. Its totient is φ = 519392256.
The previous prime is 1307900983. The next prime is 1307901041. The reversal of 1307901040 is 401097031.
It is a tau number, because it is divible by the number of its divisors (40).
It is a junction number, because it is equal to n+sod(n) for n = 1307900996 and 1307901014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1307901041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47689 + ... + 69928.
It is an arithmetic number, because the mean of its divisors is an integer number (76569318).
Almost surely, 21307901040 is an apocalyptic number.
1307901040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1307901040 is an abundant number, since it is smaller than the sum of its proper divisors (1754871680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1307901040 is a wasteful number, since it uses less digits than its factorization.
1307901040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117769 (or 117763 counting only the distinct ones).
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 1307901040 is about 36164.9144890459. The cubic root of 1307901040 is about 1093.5994799560.
Adding to 1307901040 its reverse (401097031), we get a palindrome (1708998071).
The spelling of 1307901040 in words is "one billion, three hundred seven million, nine hundred one thousand, forty".
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