Base | Representation |
---|---|
bin | 11001101110000010… |
… | …10100101110110111 |
3 | 1022122022011212101000 |
4 | 30313001110232313 |
5 | 211234321331311 |
6 | 10202053134343 |
7 | 666114012420 |
oct | 146701245667 |
9 | 38568155330 |
10 | 13807995831 |
11 | 5946287703 |
12 | 281432a3b3 |
13 | 13c08c4146 |
14 | 94dbb6647 |
15 | 55c358056 |
hex | 337054bb7 |
13807995831 has 32 divisors (see below), whose sum is σ = 23533491200. Its totient is φ = 7838013600.
The previous prime is 13807995821. The next prime is 13807995863. The reversal of 13807995831 is 13859970831.
It is not a de Polignac number, because 13807995831 - 225 = 13774441399 is a prime.
It is a super-2 number, since 2×138079958312 (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 (13807995811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213376 + ... + 270453.
It is an arithmetic number, because the mean of its divisors is an integer number (735421600).
Almost surely, 213807995831 is an apocalyptic number.
13807995831 is a deficient number, since it is larger than the sum of its proper divisors (9725495369).
13807995831 is a wasteful number, since it uses less digits than its factorization.
13807995831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 483996 (or 483990 counting only the distinct ones).
The product of its (nonzero) digits is 1632960, while the sum is 54.
The spelling of 13807995831 in words is "thirteen billion, eight hundred seven million, nine hundred ninety-five thousand, eight hundred thirty-one".
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