Search a number
-
+
12222970 = 259712601
BaseRepresentation
bin101110101000…
…000111111010
3211222222202121
4232220013322
511112113340
61113551454
7205615324
oct56500772
924888677
1012222970
116999331
12411558a
1326bc636
1418a2614
15111694a
hexba81fa

12222970 has 16 divisors (see below), whose sum is σ = 22229928. Its totient is φ = 4838400.

The previous prime is 12222967. The next prime is 12222979. The reversal of 12222970 is 7922221.

It can be written as a sum of positive squares in 4 ways, for example, as 8684809 + 3538161 = 2947^2 + 1881^2 .

It is a super-3 number, since 3×122229703 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12222979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5331 + ... + 7270.

Almost surely, 212222970 is an apocalyptic number.

12222970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222970 is a deficient number, since it is larger than the sum of its proper divisors (10006958).

12222970 is a wasteful number, since it uses less digits than its factorization.

12222970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12705.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12222970 is about 3496.1364389852. The cubic root of 12222970 is about 230.3521385963.

The spelling of 12222970 in words is "twelve million, two hundred twenty-two thousand, nine hundred seventy".

Divisors: 1 2 5 10 97 194 485 970 12601 25202 63005 126010 1222297 2444594 6111485 12222970