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13423442 = 29769193
BaseRepresentation
bin110011001101…
…001101010010
3221020222111112
4303031031102
511414022232
61155413322
7222045254
oct63151522
927228445
1013423442
11763925a
1245b4242
132a1cb86
141ad5cd4
1512a24b2
hexccd352

13423442 has 8 divisors (see below), whose sum is σ = 20343036. Its totient is φ = 6642432.

The previous prime is 13423411. The next prime is 13423451. The reversal of 13423442 is 24432431.

13423442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13315201 + 108241 = 3649^2 + 329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34403 + ... + 34790.

Almost surely, 213423442 is an apocalyptic number.

13423442 is a deficient number, since it is larger than the sum of its proper divisors (6919594).

13423442 is an equidigital number, since it uses as much as digits as its factorization.

13423442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69292.

The product of its digits is 2304, while the sum is 23.

The square root of 13423442 is about 3663.8015775967. The cubic root of 13423442 is about 237.6591996336.

Adding to 13423442 its reverse (24432431), we get a palindrome (37855873).

It can be divided in two parts, 1342 and 3442, that multiplied together give a palindrome (4619164).

The spelling of 13423442 in words is "thirteen million, four hundred twenty-three thousand, four hundred forty-two".

Divisors: 1 2 97 194 69193 138386 6711721 13423442