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13445412 = 2234371367
BaseRepresentation
bin110011010010…
…100100100100
3221022002122020
4303102210210
511420223122
61200103140
7222166311
oct63224444
927262566
1013445412
117653812
124604ab0
132a29b86
141addd08
1512a8c5c
hexcd2924

13445412 has 48 divisors (see below), whose sum is σ = 32643072. Its totient is φ = 4304160.

The previous prime is 13445389. The next prime is 13445429. The reversal of 13445412 is 21454431.

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, 36453 + ... + 36819.

It is an arithmetic number, because the mean of its divisors is an integer number (680064).

Almost surely, 213445412 is an apocalyptic number.

13445412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13445412 is an abundant number, since it is smaller than the sum of its proper divisors (19197660).

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

13445412 is a wasteful number, since it uses less digits than its factorization.

13445412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 13445412 is about 3666.7986036869. The cubic root of 13445412 is about 237.7887870279.

Adding to 13445412 its reverse (21454431), we get a palindrome (34899843).

The spelling of 13445412 in words is "thirteen million, four hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 43 71 86 129 142 172 213 258 284 367 426 516 734 852 1101 1468 2202 3053 4404 6106 9159 12212 15781 18318 26057 31562 36636 47343 52114 63124 78171 94686 104228 156342 189372 312684 1120451 2240902 3361353 4481804 6722706 13445412