Base | Representation |
---|---|
bin | 111000111010001111… |
… | …0011011111010111111 |
3 | 102200110020201211121201 |
4 | 1301310132123322333 |
5 | 4000243041020111 |
6 | 132051033240331 |
7 | 11554362141640 |
oct | 1616436337277 |
9 | 380406654551 |
10 | 122213220031 |
11 | 479151a4091 |
12 | 1b828b630a7 |
13 | b6a8897116 |
14 | 5cb52656c7 |
15 | 32a44346c1 |
hex | 1c7479bebf |
122213220031 has 16 divisors (see below), whose sum is σ = 150394855680. Its totient is φ = 96921118080.
The previous prime is 122213220029. The next prime is 122213220053. The reversal of 122213220031 is 130022312221.
It is not a de Polignac number, because 122213220031 - 21 = 122213220029 is a prime.
It is a super-2 number, since 2×1222132200312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 122213219990 and 122213220008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122213220931) 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, 8696385 + ... + 8710426.
It is an arithmetic number, because the mean of its divisors is an integer number (9399678480).
Almost surely, 2122213220031 is an apocalyptic number.
122213220031 is a deficient number, since it is larger than the sum of its proper divisors (28181635649).
122213220031 is a wasteful number, since it uses less digits than its factorization.
122213220031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17406894.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 122213220031 its reverse (130022312221), we get a palindrome (252235532252).
The spelling of 122213220031 in words is "one hundred twenty-two billion, two hundred thirteen million, two hundred twenty thousand, thirty-one".
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