Base | Representation |
---|---|
bin | 111001010010101010… |
… | …1110000110111110011 |
3 | 102202120101100111122202 |
4 | 1302211111300313303 |
5 | 4003432423431011 |
6 | 132304240453415 |
7 | 11613605333564 |
oct | 1624525606763 |
9 | 382511314582 |
10 | 123033030131 |
11 | 481a5a355a0 |
12 | 1ba1761a26b |
13 | b7a9694b5b |
14 | 5d520aa16b |
15 | 33013c123b |
hex | 1ca5570df3 |
123033030131 has 16 divisors (see below), whose sum is σ = 136993524480. Its totient is φ = 109542657120.
The previous prime is 123033030089. The next prime is 123033030143. The reversal of 123033030131 is 131030330321.
It is a cyclic number.
It is not a de Polignac number, because 123033030131 - 230 = 121959288307 is a prime.
It is a super-2 number, since 2×1230330301312 (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 (123033038131) 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, 140810 + ... + 515648.
It is an arithmetic number, because the mean of its divisors is an integer number (8562095280).
Almost surely, 2123033030131 is an apocalyptic number.
123033030131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
123033030131 is a deficient number, since it is larger than the sum of its proper divisors (13960494349).
123033030131 is a wasteful number, since it uses less digits than its factorization.
123033030131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 375466.
The product of its (nonzero) digits is 486, while the sum is 20.
Adding to 123033030131 its reverse (131030330321), we get a palindrome (254063360452).
The spelling of 123033030131 in words is "one hundred twenty-three billion, thirty-three million, thirty thousand, one hundred thirty-one".
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