Search a number
-
+
121227410 = 2519233581
BaseRepresentation
bin1110011100111…
…00100010010010
322110002222202002
413032130202102
5222013234120
620010154002
73001262453
oct716344222
9273088662
10121227410
116247aa47
1234722902
131c1667c5
141215912a
15a999375
hex739c892

121227410 has 24 divisors (see below), whose sum is σ = 230305356. Its totient is φ = 45937440.

The previous prime is 121227361. The next prime is 121227413. The reversal of 121227410 is 14722121.

It can be written as a sum of positive squares in 2 ways, for example, as 100260169 + 20967241 = 10013^2 + 4579^2 .

It is not an unprimeable number, because it can be changed into a prime (121227413) 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 11 ways as a sum of consecutive naturals, for example, 13181 + ... + 20400.

Almost surely, 2121227410 is an apocalyptic number.

121227410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121227410 is a deficient number, since it is larger than the sum of its proper divisors (109077946).

121227410 is a wasteful number, since it uses less digits than its factorization.

121227410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33626 (or 33607 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 121227410 is about 11010.3319659309. The cubic root of 121227410 is about 494.9184098425.

Adding to 121227410 its reverse (14722121), we get a palindrome (135949531).

The spelling of 121227410 in words is "one hundred twenty-one million, two hundred twenty-seven thousand, four hundred ten".

Divisors: 1 2 5 10 19 38 95 190 361 722 1805 3610 33581 67162 167905 335810 638039 1276078 3190195 6380390 12122741 24245482 60613705 121227410