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13200556 = 223300139
BaseRepresentation
bin110010010110…
…110010101100
3220211122202111
4302112302230
511334404211
61150533404
7220126405
oct62266254
926748674
1013200556
1174a6856
124507264
1329725a5
141a789ac
15125b421
hexc96cac

13200556 has 6 divisors (see below), whose sum is σ = 23100980. Its totient is φ = 6600276.

The previous prime is 13200503. The next prime is 13200557. The reversal of 13200556 is 65500231.

It is a happy number.

13200556 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 (13200557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1650066 + ... + 1650073.

Almost surely, 213200556 is an apocalyptic number.

It is an amenable number.

13200556 is a deficient number, since it is larger than the sum of its proper divisors (9900424).

13200556 is a wasteful number, since it uses less digits than its factorization.

13200556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300143 (or 3300141 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13200556 is about 3633.2569410929. The cubic root of 13200556 is about 236.3364682598.

Adding to 13200556 its reverse (65500231), we get a palindrome (78700787).

The spelling of 13200556 in words is "thirteen million, two hundred thousand, five hundred fifty-six".

Divisors: 1 2 4 3300139 6600278 13200556