Base | Representation |
---|---|
bin | 1111110011011111… |
… | …10000010010010111 |
3 | 210220100001022011002 |
4 | 13321233300102113 |
5 | 114334130401011 |
6 | 3521543133515 |
7 | 420160263104 |
oct | 77157602227 |
9 | 23810038132 |
10 | 8485012631 |
11 | 3664628637 |
12 | 178974429b |
13 | a52b7b544 |
14 | 5a6c7baab |
15 | 349da2c3b |
hex | 1f9bf0497 |
8485012631 has 4 divisors (see below), whose sum is σ = 8487533064. Its totient is φ = 8482492200.
The previous prime is 8485012603. The next prime is 8485012643. The reversal of 8485012631 is 1362105848.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 8485012631 - 26 = 8485012567 is a prime.
It is a super-2 number, since 2×84850126312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8485012661) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255160 + ... + 1261901.
It is an arithmetic number, because the mean of its divisors is an integer number (2121883266).
Almost surely, 28485012631 is an apocalyptic number.
8485012631 is a deficient number, since it is larger than the sum of its proper divisors (2520433).
8485012631 is a wasteful number, since it uses less digits than its factorization.
8485012631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2520432.
The product of its (nonzero) digits is 46080, while the sum is 38.
The square root of 8485012631 is about 92114.1282920270. The cubic root of 8485012631 is about 2039.6273693826.
The spelling of 8485012631 in words is "eight billion, four hundred eighty-five million, twelve thousand, six hundred thirty-one".
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