Base | Representation |
---|---|
bin | 1110001101001101011101… |
… | …10111111001000011011001 |
3 | 11002121112111102011222220210 |
4 | 13012212232313321003121 |
5 | 13043314443120443001 |
6 | 150235321454241333 |
7 | 6403014022251636 |
oct | 706465667710331 |
9 | 132545442158823 |
10 | 31240231031001 |
11 | 9a549a8a931a3 |
12 | 36066961b6249 |
13 | 1457c30909b35 |
14 | 7a006ca2118d |
15 | 39296b8d4dd6 |
hex | 1c69aedf90d9 |
31240231031001 has 16 divisors (see below), whose sum is σ = 42555903768000. Its totient is φ = 20380514423808.
The previous prime is 31240231030973. The next prime is 31240231031021. The reversal of 31240231031001 is 10013013204213.
It is not a de Polignac number, because 31240231031001 - 217 = 31240230899929 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (31240231031021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603090651 + ... + 603142448.
It is an arithmetic number, because the mean of its divisors is an integer number (2659743985500).
Almost surely, 231240231031001 is an apocalyptic number.
It is an amenable number.
31240231031001 is a deficient number, since it is larger than the sum of its proper divisors (11315672736999).
31240231031001 is a wasteful number, since it uses less digits than its factorization.
31240231031001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1206233288.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 31240231031001 its reverse (10013013204213), we get a palindrome (41253244235214).
It can be divided in two parts, 312402 and 31031001, that added together give a triangular number (31343403 = T7917).
The spelling of 31240231031001 in words is "thirty-one trillion, two hundred forty billion, two hundred thirty-one million, thirty-one thousand, one".
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