Search a number
-
+
12210202 = 26105101
BaseRepresentation
bin101110100101…
…000000011010
3211222100020201
4232211000122
511111211302
61113412414
7205533154
oct56450032
924870221
1012210202
11698a784
12410a10a
1326b6894
14189bad4
151112c87
hexba501a

12210202 has 4 divisors (see below), whose sum is σ = 18315306. Its totient is φ = 6105100.

The previous prime is 12210197. The next prime is 12210203. The reversal of 12210202 is 20201221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20201221 = 28037207.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 2852721 = 3059^2 + 1689^2 .

It is not an unprimeable number, because it can be changed into a prime (12210203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052549 + ... + 3052552.

Almost surely, 212210202 is an apocalyptic number.

12210202 is a deficient number, since it is larger than the sum of its proper divisors (6105104).

12210202 is an equidigital number, since it uses as much as digits as its factorization.

12210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105103.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12210202 is about 3494.3099461839. The cubic root of 12210202 is about 230.2719027564.

Adding to 12210202 its reverse (20201221), we get a palindrome (32411423).

The spelling of 12210202 in words is "twelve million, two hundred ten thousand, two hundred two".

Divisors: 1 2 6105101 12210202