Base | Representation |
---|---|
bin | 101101100011111111100… |
… | …010011010010001110101 |
3 | 102002022201101220201211110 |
4 | 231203333202122101311 |
5 | 402244313442331401 |
6 | 10354212225425233 |
7 | 442131451541040 |
oct | 55437742322165 |
9 | 12068641821743 |
10 | 3131023402101 |
11 | aa79500a2a71 |
12 | 42699149b219 |
13 | 19933c7466ba |
14 | ab784281c57 |
15 | 566a235c9d6 |
hex | 2d8ff89a475 |
3131023402101 has 16 divisors (see below), whose sum is σ = 4772510572544. Its totient is φ = 1788620994864.
The previous prime is 3131023402099. The next prime is 3131023402127. The reversal of 3131023402101 is 1012043201313.
3131023402101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 3131023402101 - 21 = 3131023402099 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3131023402301) 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, 22229581 + ... + 22369986.
It is an arithmetic number, because the mean of its divisors is an integer number (298281910784).
Almost surely, 23131023402101 is an apocalyptic number.
It is an amenable number.
3131023402101 is a deficient number, since it is larger than the sum of its proper divisors (1641487170443).
3131023402101 is a wasteful number, since it uses less digits than its factorization.
3131023402101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44602920.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 3131023402101 its reverse (1012043201313), we get a palindrome (4143066603414).
The spelling of 3131023402101 in words is "three trillion, one hundred thirty-one billion, twenty-three million, four hundred two thousand, one hundred one".
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