Base | Representation |
---|---|
bin | 101001001000100… |
… | …1111000111100101 |
3 | 10120012011222011112 |
4 | 1102101033013211 |
5 | 10311321000320 |
6 | 344543314405 |
7 | 46126634504 |
oct | 12221170745 |
9 | 3505158145 |
10 | 1380250085 |
11 | 64912a355 |
12 | 3262aba05 |
13 | 18cc55136 |
14 | d145083b |
15 | 81292ec5 |
hex | 5244f1e5 |
1380250085 has 8 divisors (see below), whose sum is σ = 1657391136. Its totient is φ = 1103472720.
The previous prime is 1380250061. The next prime is 1380250087. The reversal of 1380250085 is 5800520831.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1380250085 - 212 = 1380245989 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1380250087) 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, 82499 + ... + 97808.
It is an arithmetic number, because the mean of its divisors is an integer number (207173892).
Almost surely, 21380250085 is an apocalyptic number.
It is an amenable number.
1380250085 is a deficient number, since it is larger than the sum of its proper divisors (277141051).
1380250085 is a wasteful number, since it uses less digits than its factorization.
1380250085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181843.
The product of its (nonzero) digits is 9600, while the sum is 32.
The square root of 1380250085 is about 37151.7171204778. The cubic root of 1380250085 is about 1113.4035307689.
The spelling of 1380250085 in words is "one billion, three hundred eighty million, two hundred fifty thousand, eighty-five".
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