Base | Representation |
---|---|
bin | 101111101100101010… |
… | …1000011100010101100 |
3 | 100210101112220122010020 |
4 | 1133121111003202230 |
5 | 3134234142020322 |
6 | 115020023242140 |
7 | 10254215142315 |
oct | 1373125034254 |
9 | 323345818106 |
10 | 102430423212 |
11 | 3a493338027 |
12 | 17a278a9350 |
13 | 98751baba0 |
14 | 4d59b5d60c |
15 | 29e77c005c |
hex | 17d95438ac |
102430423212 has 48 divisors (see below), whose sum is σ = 261751822080. Its totient is φ = 30982863168.
The previous prime is 102430423201. The next prime is 102430423217. The reversal of 102430423212 is 212324034201.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (102430423217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5555248 + ... + 5573655.
It is an arithmetic number, because the mean of its divisors is an integer number (5453162960).
Almost surely, 2102430423212 is an apocalyptic number.
102430423212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
102430423212 is an abundant number, since it is smaller than the sum of its proper divisors (159321398868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102430423212 is a wasteful number, since it uses less digits than its factorization.
102430423212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11128982 (or 11128980 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 24.
Adding to 102430423212 its reverse (212324034201), we get a palindrome (314754457413).
The spelling of 102430423212 in words is "one hundred two billion, four hundred thirty million, four hundred twenty-three thousand, two hundred twelve".
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