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13443030 = 233549789
BaseRepresentation
bin110011010001…
…111111010110
3221021222101000
4303101333112
511420134110
61200044130
7222156336
oct63217726
927258330
1013443030
117651a47
124603646
132a28a73
141add0c6
1512a81c0
hexcd1fd6

13443030 has 32 divisors (see below), whose sum is σ = 35848800. Its totient is φ = 3584736.

The previous prime is 13443011. The next prime is 13443049. The reversal of 13443030 is 3034431.

It is an interprime number because it is at equal distance from previous prime (13443011) and next prime (13443049).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13442994 and 13443012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24625 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (1120275).

Almost surely, 213443030 is an apocalyptic number.

13443030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13443030 is an abundant number, since it is smaller than the sum of its proper divisors (22405770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13443030 is a wasteful number, since it uses less digits than its factorization.

13443030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49805 (or 49799 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13443030 is about 3666.4737828055. The cubic root of 13443030 is about 237.7747439143.

Adding to 13443030 its reverse (3034431), we get a palindrome (16477461).

The spelling of 13443030 in words is "thirteen million, four hundred forty-three thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 49789 99578 149367 248945 298734 448101 497890 746835 896202 1344303 1493670 2240505 2688606 4481010 6721515 13443030