Base | Representation |
---|---|
bin | 10110100110010000… |
… | …11000000110010111 |
3 | 1011022111201201002001 |
4 | 23103020120012113 |
5 | 144321310414111 |
6 | 5323505300131 |
7 | 606434226040 |
oct | 132310300627 |
9 | 34274651061 |
10 | 12132123031 |
11 | 51662a3666 |
12 | 2427034647 |
13 | 11b4644732 |
14 | 8313b18c7 |
15 | 4b016d1c1 |
hex | 2d3218197 |
12132123031 has 8 divisors (see below), whose sum is σ = 14032335744. Its totient is φ = 10273673400.
The previous prime is 12132123011. The next prime is 12132123061. The reversal of 12132123031 is 13032123121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12132123031 is a prime.
It is a super-2 number, since 2×121321230312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12132123011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10440145 + ... + 10441306.
It is an arithmetic number, because the mean of its divisors is an integer number (1754041968).
Almost surely, 212132123031 is an apocalyptic number.
12132123031 is a deficient number, since it is larger than the sum of its proper divisors (1900212713).
12132123031 is an equidigital number, since it uses as much as digits as its factorization.
12132123031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20881541.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 12132123031 its reverse (13032123121), we get a palindrome (25164246152).
The spelling of 12132123031 in words is "twelve billion, one hundred thirty-two million, one hundred twenty-three thousand, thirty-one".
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