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13444130 = 257227437
BaseRepresentation
bin110011010010…
…010000100010
3221022000212202
4303102100202
511420203010
61200053202
7222162500
oct63222042
927260782
1013444130
117652857
124604202
132a2940b
141add670
1512a86a5
hexcd2422

13444130 has 24 divisors (see below), whose sum is σ = 28151388. Its totient is φ = 4609248.

The previous prime is 13444129. The next prime is 13444147. The reversal of 13444130 is 3144431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13402921 + 41209 = 3661^2 + 203^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13229 + ... + 14208.

Almost surely, 213444130 is an apocalyptic number.

13444130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13444130 is an abundant number, since it is smaller than the sum of its proper divisors (14707258).

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

13444130 is a wasteful number, since it uses less digits than its factorization.

13444130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27458 (or 27451 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13444130 is about 3666.6237876281. The cubic root of 13444130 is about 237.7812291855.

Adding to 13444130 its reverse (3144431), we get a palindrome (16588561).

The spelling of 13444130 in words is "thirteen million, four hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 27437 54874 137185 192059 274370 384118 960295 1344413 1920590 2688826 6722065 13444130