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12420304030 = 2510911138433
BaseRepresentation
bin10111001000100111…
…01100110010011110
31012001120222211002101
423210103230302132
5200414044212110
65412242115314
7616533561631
oct134423546236
935046884071
1012420304030
1152a3a35282
1224a764bb3a
13122c264a34
1485b789c18
154ca5e513a
hex2e44ecc9e

12420304030 has 16 divisors (see below), whose sum is σ = 22377058704. Its totient is φ = 4963563520.

The previous prime is 12420303979. The next prime is 12420304067. The reversal of 12420304030 is 3040302421.

It is a junction number, because it is equal to n+sod(n) for n = 12420303989 and 12420304007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558307 + ... + 580126.

It is an arithmetic number, because the mean of its divisors is an integer number (1398566169).

Almost surely, 212420304030 is an apocalyptic number.

12420304030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12420304030 is a deficient number, since it is larger than the sum of its proper divisors (9956754674).

12420304030 is a wasteful number, since it uses less digits than its factorization.

12420304030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139531.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12420304030 its reverse (3040302421), we get a palindrome (15460606451).

The spelling of 12420304030 in words is "twelve billion, four hundred twenty million, three hundred four thousand, thirty".

Divisors: 1 2 5 10 1091 2182 5455 10910 1138433 2276866 5692165 11384330 1242030403 2484060806 6210152015 12420304030