Base | Representation |
---|---|
bin | 11100111100111110… |
… | …000101001000111110 |
3 | 2222020112221200010000 |
4 | 130330332011020332 |
5 | 1002131421144024 |
6 | 22140444455130 |
7 | 2150244621531 |
oct | 347476051076 |
9 | 88215850100 |
10 | 31087678014 |
11 | 12203202688 |
12 | 603724a4a6 |
13 | 2c15820363 |
14 | 170ca9aa18 |
15 | c1e378cc9 |
hex | 73cf8523e |
31087678014 has 40 divisors (see below), whose sum is σ = 73757046528. Its totient is φ = 9752996160.
The previous prime is 31087678007. The next prime is 31087678021. The reversal of 31087678014 is 41087678013.
It is an interprime number because it is at equal distance from previous prime (31087678007) and next prime (31087678021).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5641342 + ... + 5646849.
Almost surely, 231087678014 is an apocalyptic number.
31087678014 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
31087678014 is an abundant number, since it is smaller than the sum of its proper divisors (42669368514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31087678014 is a wasteful number, since it uses less digits than its factorization.
31087678014 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11288222 (or 11288213 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
Subtracting 31087678014 from its reverse (41087678013), we obtain a palindrome (9999999999).
The spelling of 31087678014 in words is "thirty-one billion, eighty-seven million, six hundred seventy-eight thousand, fourteen".
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