Base | Representation |
---|---|
bin | 111001010111101001… |
… | …1111001010000001011 |
3 | 102210000001010022200210 |
4 | 1302233103321100023 |
5 | 4004303234443311 |
6 | 132333014132203 |
7 | 11621006243025 |
oct | 1625723712013 |
9 | 383001108623 |
10 | 123200312331 |
11 | 48281401148 |
12 | 1ba63651063 |
13 | b8052350c5 |
14 | 5d6a3b3015 |
15 | 3310e163a6 |
hex | 1caf4f940b |
123200312331 has 8 divisors (see below), whose sum is σ = 165274857280. Its totient is φ = 81629654472.
The previous prime is 123200312321. The next prime is 123200312351. The reversal of 123200312331 is 133213002321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 123200312331 - 26 = 123200312267 is a prime.
It is a super-2 number, since 2×1232003123312 (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 = 123200312298 and 123200312307.
It is not an unprimeable number, because it can be changed into a prime (123200312321) 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, 125971201 + ... + 125972178.
It is an arithmetic number, because the mean of its divisors is an integer number (20659357160).
Almost surely, 2123200312331 is an apocalyptic number.
123200312331 is a deficient number, since it is larger than the sum of its proper divisors (42074544949).
123200312331 is a wasteful number, since it uses less digits than its factorization.
123200312331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 251943545.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 123200312331 its reverse (133213002321), we get a palindrome (256413314652).
The spelling of 123200312331 in words is "one hundred twenty-three billion, two hundred million, three hundred twelve thousand, three hundred thirty-one".
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