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13203212 = 2211300073
BaseRepresentation
bin110010010111…
…011100001100
3220211210101212
4302113130030
511340000322
61150553552
7220140221
oct62273414
926753355
1013203212
1174a8850
1245088b8
132973869
141a79948
15125c0e2
hexc9770c

13203212 has 12 divisors (see below), whose sum is σ = 25206216. Its totient is φ = 6001440.

The previous prime is 13203209. The next prime is 13203217. The reversal of 13203212 is 21230231.

It is a happy number.

13203212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13203217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149993 + ... + 150080.

It is an arithmetic number, because the mean of its divisors is an integer number (2100518).

Almost surely, 213203212 is an apocalyptic number.

It is an amenable number.

13203212 is a deficient number, since it is larger than the sum of its proper divisors (12003004).

13203212 is a wasteful number, since it uses less digits than its factorization.

13203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300088 (or 300086 counting only the distinct ones).

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

The square root of 13203212 is about 3633.6224349814. The cubic root of 13203212 is about 236.3523177833.

Adding to 13203212 its reverse (21230231), we get a palindrome (34433443).

The spelling of 13203212 in words is "thirteen million, two hundred three thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 300073 600146 1200292 3300803 6601606 13203212