Base | Representation |
---|---|
bin | 11101001010111111… |
… | …110001000100001101 |
3 | 2222211221202022200220 |
4 | 131022333301010031 |
5 | 1003122142013401 |
6 | 22220052341553 |
7 | 2156133054630 |
oct | 351277610415 |
9 | 88757668626 |
10 | 31323001101 |
11 | 12314021377 |
12 | 60a20148b9 |
13 | 2c524c44a2 |
14 | 1732035c17 |
15 | c34d5e336 |
hex | 74aff110d |
31323001101 has 16 divisors (see below), whose sum is σ = 47737332864. Its totient is φ = 17896215744.
The previous prime is 31323001069. The next prime is 31323001169. The reversal of 31323001101 is 10110032313.
It is not a de Polignac number, because 31323001101 - 25 = 31323001069 is a prime.
It is a super-2 number, since 2×313230011012 (a number of 22 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31323001001) 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 15 ways as a sum of consecutive naturals, for example, 40351 + ... + 253523.
It is an arithmetic number, because the mean of its divisors is an integer number (2983583304).
Almost surely, 231323001101 is an apocalyptic number.
It is an amenable number.
31323001101 is a deficient number, since it is larger than the sum of its proper divisors (16414331763).
31323001101 is a wasteful number, since it uses less digits than its factorization.
31323001101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 220180.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 31323001101 its reverse (10110032313), we get a palindrome (41433033414).
The spelling of 31323001101 in words is "thirty-one billion, three hundred twenty-three million, one thousand, one hundred one".
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