Base | Representation |
---|---|
bin | 100001101001010011111… |
… | …010000011100101101111 |
3 | 22012000221020022100000211 |
4 | 201221103322003211233 |
5 | 300340140113230411 |
6 | 4530055242003251 |
7 | 326020665602650 |
oct | 41512372034557 |
9 | 8160836270024 |
10 | 2312100133231 |
11 | 811613281299 |
12 | 3141257a6527 |
13 | 13a0511b6b15 |
14 | 7dc98a37527 |
15 | 40222adb221 |
hex | 21a53e8396f |
2312100133231 has 8 divisors (see below), whose sum is σ = 2644943375360. Its totient is φ = 1979892696888.
The previous prime is 2312100133183. The next prime is 2312100133249. The reversal of 2312100133231 is 1323310012132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2312100133231 - 211 = 2312100131183 is a prime.
It is a super-2 number, since 2×23121001332312 (a number of 26 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2312100133531) 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, 158943651 + ... + 158958196.
It is an arithmetic number, because the mean of its divisors is an integer number (330617921920).
Almost surely, 22312100133231 is an apocalyptic number.
2312100133231 is a deficient number, since it is larger than the sum of its proper divisors (332843242129).
2312100133231 is a wasteful number, since it uses less digits than its factorization.
2312100133231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 317902893.
The product of its (nonzero) digits is 648, while the sum is 22.
Adding to 2312100133231 its reverse (1323310012132), we get a palindrome (3635410145363).
The spelling of 2312100133231 in words is "two trillion, three hundred twelve billion, one hundred million, one hundred thirty-three thousand, two hundred thirty-one".
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