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121352346105 = 35307131919979
BaseRepresentation
bin111000100000100101…
…0011101100111111001
3102121020020211220121020
41301001022131213321
53442012200033410
6131425401533053
711524136631264
oct1610112354771
9377206756536
10121352346105
1147513265831
121b6287a4189
13b59c41c573
145c32bb1cdb
153253a85a70
hex1c4129d9f9

121352346105 has 32 divisors (see below), whose sum is σ = 194953651200. Its totient is φ = 64458297792.

The previous prime is 121352346041. The next prime is 121352346121. The reversal of 121352346105 is 501643253121.

It is not a de Polignac number, because 121352346105 - 26 = 121352346041 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6064006 + ... + 6083984.

It is an arithmetic number, because the mean of its divisors is an integer number (6092301600).

Almost surely, 2121352346105 is an apocalyptic number.

121352346105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121352346105 is a deficient number, since it is larger than the sum of its proper divisors (73601305095).

121352346105 is a wasteful number, since it uses less digits than its factorization.

121352346105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21613.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 121352346105 its reverse (501643253121), we get a palindrome (622995599226).

The spelling of 121352346105 in words is "one hundred twenty-one billion, three hundred fifty-two million, three hundred forty-six thousand, one hundred five".

Divisors: 1 3 5 15 307 921 1319 1535 3957 4605 6595 19785 19979 59937 99895 299685 404933 1214799 2024665 6073995 6133553 18400659 26352301 30667765 79056903 92003295 131761505 395284515 8090156407 24270469221 40450782035 121352346105