Base | Representation |
---|---|
bin | 10110100110010010… |
… | …11110011101011111 |
3 | 1011022112021100102010 |
4 | 23103021132131133 |
5 | 144321344124411 |
6 | 5323515402303 |
7 | 606436536213 |
oct | 132311363537 |
9 | 34275240363 |
10 | 12132411231 |
11 | 5166480146 |
12 | 2427153393 |
13 | 11b4715975 |
14 | 831448943 |
15 | 4b01c87a6 |
hex | 2d325e75f |
12132411231 has 4 divisors (see below), whose sum is σ = 16176548312. Its totient is φ = 8088274152.
The previous prime is 12132411217. The next prime is 12132411281. The reversal of 12132411231 is 13211423121.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 12132411231 - 215 = 12132378463 is a prime.
It is a super-2 number, since 2×121324112312 (a number of 21 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 = 12132411198 and 12132411207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12132411211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2022068536 + ... + 2022068541.
It is an arithmetic number, because the mean of its divisors is an integer number (4044137078).
Almost surely, 212132411231 is an apocalyptic number.
12132411231 is a deficient number, since it is larger than the sum of its proper divisors (4044137081).
12132411231 is an equidigital number, since it uses as much as digits as its factorization.
12132411231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4044137080.
The product of its digits is 288, while the sum is 21.
Adding to 12132411231 its reverse (13211423121), we get a palindrome (25343834352).
The spelling of 12132411231 in words is "twelve billion, one hundred thirty-two million, four hundred eleven thousand, two hundred thirty-one".
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