Search a number
-
+
212431150 = 25217491509
BaseRepresentation
bin11001010100101…
…11000100101110
3112210201121202101
430222113010232
5413340244100
633025045314
75156430541
oct1452270456
9483647671
10212431150
11a9a03738
125b18683a
133501a609
14202da858
15139b286a
hexca9712e

212431150 has 48 divisors (see below), whose sum is σ = 420040080. Its totient is φ = 79654400.

The previous prime is 212431147. The next prime is 212431159. The reversal of 212431150 is 51134212.

212431150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212431159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417096 + ... + 417604.

It is an arithmetic number, because the mean of its divisors is an integer number (8750835).

Almost surely, 2212431150 is an apocalyptic number.

212431150 is a deficient number, since it is larger than the sum of its proper divisors (207608930).

212431150 is a wasteful number, since it uses less digits than its factorization.

212431150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 212431150 is about 14575.0180102805. The cubic root of 212431150 is about 596.6771409097.

Adding to 212431150 its reverse (51134212), we get a palindrome (263565362).

The spelling of 212431150 in words is "two hundred twelve million, four hundred thirty-one thousand, one hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 491 509 850 982 1018 2455 2545 4910 5090 8347 8653 12275 12725 16694 17306 24550 25450 41735 43265 83470 86530 208675 216325 249919 417350 432650 499838 1249595 2499190 4248623 6247975 8497246 12495950 21243115 42486230 106215575 212431150