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12620030 = 258771439
BaseRepresentation
bin110000001001…
…000011111110
3212202011102112
4300021003332
511212320110
61130254022
7212161043
oct60110376
925664375
1012620030
11713a685
124287312
1327cb297
1419671ca
151194405
hexc090fe

12620030 has 16 divisors (see below), whose sum is σ = 22757760. Its totient is φ = 5038752.

The previous prime is 12620011. The next prime is 12620039. The reversal of 12620030 is 3002621.

It is a junction number, because it is equal to n+sod(n) for n = 12619987 and 12620014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8051 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (1422360).

Almost surely, 212620030 is an apocalyptic number.

12620030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12620030 is a deficient number, since it is larger than the sum of its proper divisors (10137730).

12620030 is a wasteful number, since it uses less digits than its factorization.

12620030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12620030 is about 3552.4681560853. The cubic root of 12620030 is about 232.8199164792.

Adding to 12620030 its reverse (3002621), we get a palindrome (15622651).

The spelling of 12620030 in words is "twelve million, six hundred twenty thousand, thirty".

Divisors: 1 2 5 10 877 1439 1754 2878 4385 7195 8770 14390 1262003 2524006 6310015 12620030