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102430423212 = 223135911128903
BaseRepresentation
bin101111101100101010…
…1000011100010101100
3100210101112220122010020
41133121111003202230
53134234142020322
6115020023242140
710254215142315
oct1373125034254
9323345818106
10102430423212
113a493338027
1217a278a9350
1398751baba0
144d59b5d60c
1529e77c005c
hex17d95438ac

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".

Divisors: 1 2 3 4 6 12 13 26 39 52 59 78 118 156 177 236 354 708 767 1534 2301 3068 4602 9204 11128903 22257806 33386709 44515612 66773418 133546836 144675739 289351478 434027217 578702956 656605277 868054434 1313210554 1736108868 1969815831 2626421108 3939631662 7879263324 8535868601 17071737202 25607605803 34143474404 51215211606 102430423212