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13200434 = 2131134493
BaseRepresentation
bin110010010110…
…110000110010
3220211122120222
4302112300302
511334403214
61150533042
7220126142
oct62266062
926748528
1013200434
1174a6755
124507182
132972510
141a78922
15125b38e
hexc96c32

13200434 has 16 divisors (see below), whose sum is σ = 21517272. Its totient is φ = 6037248.

The previous prime is 13200433. The next prime is 13200437. The reversal of 13200434 is 43400231.

It can be written as a sum of positive squares in 4 ways, for example, as 9579025 + 3621409 = 3095^2 + 1903^2 .

It is not an unprimeable number, because it can be changed into a prime (13200431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692 + ... + 5184.

Almost surely, 213200434 is an apocalyptic number.

13200434 is a deficient number, since it is larger than the sum of its proper divisors (8316838).

13200434 is a wasteful number, since it uses less digits than its factorization.

13200434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13200434 is about 3633.2401517103. The cubic root of 13200434 is about 236.3357401810.

Adding to 13200434 its reverse (43400231), we get a palindrome (56600665).

The spelling of 13200434 in words is "thirteen million, two hundred thousand, four hundred thirty-four".

Divisors: 1 2 13 26 113 226 1469 2938 4493 8986 58409 116818 507709 1015418 6600217 13200434