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12340430 = 2510311981
BaseRepresentation
bin101111000100…
…110011001110
3212012221212222
4233010303032
511124343210
61120255342
7206614634
oct57046316
925187788
1012340430
116a69603
124171552
132730c3b
1418d3354
15113b655
hexbc4cce

12340430 has 16 divisors (see below), whose sum is σ = 22430304. Its totient is φ = 4887840.

The previous prime is 12340429. The next prime is 12340459. The reversal of 12340430 is 3404321.

It is a junction number, because it is equal to n+sod(n) for n = 12340399 and 12340408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4961 + ... + 7020.

It is an arithmetic number, because the mean of its divisors is an integer number (1401894).

Almost surely, 212340430 is an apocalyptic number.

12340430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340430 is a deficient number, since it is larger than the sum of its proper divisors (10089874).

12340430 is a wasteful number, since it uses less digits than its factorization.

12340430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12340430 is about 3512.8948176682. The cubic root of 12340430 is about 231.0876649833.

Adding to 12340430 its reverse (3404321), we get a palindrome (15744751).

The spelling of 12340430 in words is "twelve million, three hundred forty thousand, four hundred thirty".

Divisors: 1 2 5 10 103 206 515 1030 11981 23962 59905 119810 1234043 2468086 6170215 12340430