Search a number
-
+
12802442 = 23126661
BaseRepresentation
bin110000110101…
…100110001010
3220002102122112
4300311212022
511234134232
61134222322
7213550622
oct60654612
926072575
1012802442
117254734
1243549a2
132863313
1419b3882
1511cd4b2
hexc3598a

12802442 has 12 divisors (see below), whose sum is σ = 19846098. Its totient is φ = 6193800.

The previous prime is 12802441. The next prime is 12802451. The reversal of 12802442 is 24420821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7958041 + 4844401 = 2821^2 + 2201^2 .

It is not an unprimeable number, because it can be changed into a prime (12802441) 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 5 ways as a sum of consecutive naturals, for example, 1409 + ... + 5252.

Almost surely, 212802442 is an apocalyptic number.

12802442 is a deficient number, since it is larger than the sum of its proper divisors (7043656).

12802442 is an equidigital number, since it uses as much as digits as its factorization.

12802442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725 (or 6694 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 12802442 is about 3578.0500275988. The cubic root of 12802442 is about 233.9362940514.

The spelling of 12802442 in words is "twelve million, eight hundred two thousand, four hundred forty-two".

Divisors: 1 2 31 62 961 1922 6661 13322 206491 412982 6401221 12802442