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12430005 = 357235147
BaseRepresentation
bin101111011010…
…101010110101
3212101111202120
4233122222311
511140230010
61122230153
7210440040
oct57325265
925344676
1012430005
11701a935
1241b5359
132762943
141917c57
151157e70
hexbdaab5

12430005 has 32 divisors (see below), whose sum is σ = 23721984. Its totient is φ = 5434176.

The previous prime is 12430003. The next prime is 12430021. The reversal of 12430005 is 50003421.

It is not a de Polignac number, because 12430005 - 21 = 12430003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (741312).

Almost surely, 212430005 is an apocalyptic number.

12430005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12430005 is a deficient number, since it is larger than the sum of its proper divisors (11291979).

12430005 is a wasteful number, since it uses less digits than its factorization.

12430005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12430005 is about 3525.6212218558. The cubic root of 12430005 is about 231.6454465896.

Adding to 12430005 its reverse (50003421), we get a palindrome (62433426).

The spelling of 12430005 in words is "twelve million, four hundred thirty thousand, five".

Divisors: 1 3 5 7 15 21 23 35 69 105 115 161 345 483 805 2415 5147 15441 25735 36029 77205 108087 118381 180145 355143 540435 591905 828667 1775715 2486001 4143335 12430005