Base | Representation |
---|---|
bin | 111000110110111101… |
… | …0011010000111000011 |
3 | 102200011120112202222100 |
4 | 1301231322122013003 |
5 | 4000031344042011 |
6 | 132032101241443 |
7 | 11551554220440 |
oct | 1615572320703 |
9 | 380146482870 |
10 | 122103112131 |
11 | 47869029420 |
12 | 1b7b8103283 |
13 | b68bb24910 |
14 | 5ca47a29c7 |
15 | 3299934d56 |
hex | 1c6de9a1c3 |
122103112131 has 48 divisors (see below), whose sum is σ = 236806053120. Its totient is φ = 58550938560.
The previous prime is 122103112097. The next prime is 122103112141. The reversal of 122103112131 is 131211301221.
122103112131 is a `hidden beast` number, since 1 + 221 + 0 + 311 + 2 + 131 = 666.
It is not a de Polignac number, because 122103112131 - 211 = 122103110083 is a prime.
It is a super-2 number, since 2×1221031121312 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (122103112141) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6767721 + ... + 6785738.
It is an arithmetic number, because the mean of its divisors is an integer number (4933459440).
Almost surely, 2122103112131 is an apocalyptic number.
122103112131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
122103112131 is a deficient number, since it is larger than the sum of its proper divisors (114702940989).
122103112131 is a wasteful number, since it uses less digits than its factorization.
122103112131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13553496 (or 13553493 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
Adding to 122103112131 its reverse (131211301221), we get a palindrome (253314413352).
The spelling of 122103112131 in words is "one hundred twenty-two billion, one hundred three million, one hundred twelve thousand, one hundred thirty-one".
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