Base | Representation |
---|---|
bin | 100100101010001… |
… | …1101111001101011 |
3 | 10011201122122212220 |
4 | 1021110131321223 |
5 | 10004401231443 |
6 | 322021205123 |
7 | 42324460365 |
oct | 11124357153 |
9 | 3151578786 |
10 | 1230102123 |
11 | 5813a6a28 |
12 | 2a3b607a3 |
13 | 167b03aa3 |
14 | b9527d35 |
15 | 72ed4a83 |
hex | 4951de6b |
1230102123 has 16 divisors (see below), whose sum is σ = 1801524480. Its totient is φ = 743127264.
The previous prime is 1230102101. The next prime is 1230102143. The reversal of 1230102123 is 3212010321.
It is not a de Polignac number, because 1230102123 - 25 = 1230102091 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1230102143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467836 + ... + 470457.
It is an arithmetic number, because the mean of its divisors is an integer number (112595280).
Almost surely, 21230102123 is an apocalyptic number.
1230102123 is a deficient number, since it is larger than the sum of its proper divisors (571422357).
1230102123 is a wasteful number, since it uses less digits than its factorization.
1230102123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 938338.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1230102123 is about 35072.8117350178. The cubic root of 1230102123 is about 1071.4709216606.
Adding to 1230102123 its reverse (3212010321), we get a palindrome (4442112444).
The spelling of 1230102123 in words is "one billion, two hundred thirty million, one hundred two thousand, one hundred twenty-three".
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