Base | Representation |
---|---|
bin | 111001010101100100… |
… | …0011100010010010001 |
3 | 102202211011012022100110 |
4 | 1302223020130102101 |
5 | 4004132312414413 |
6 | 132322031311533 |
7 | 11616165304344 |
oct | 1625310342221 |
9 | 382734168313 |
10 | 123130201233 |
11 | 48245874696 |
12 | 1ba4407b5a9 |
13 | b7c3857b50 |
14 | 5d60d6245b |
15 | 3309bb78c3 |
hex | 1cab21c491 |
123130201233 has 16 divisors (see below), whose sum is σ = 186107727680. Its totient is φ = 71784408384.
The previous prime is 123130201231. The next prime is 123130201237. The reversal of 123130201233 is 332102031321.
It is not a de Polignac number, because 123130201233 - 21 = 123130201231 is a prime.
It is a super-2 number, since 2×1231302012332 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123130201231) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83083066 + ... + 83084547.
It is an arithmetic number, because the mean of its divisors is an integer number (11631732980).
Almost surely, 2123130201233 is an apocalyptic number.
123130201233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
123130201233 is a deficient number, since it is larger than the sum of its proper divisors (62977526447).
123130201233 is a wasteful number, since it uses less digits than its factorization.
123130201233 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 166167648.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 123130201233 its reverse (332102031321), we get a palindrome (455232232554).
The spelling of 123130201233 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred one thousand, two hundred thirty-three".
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