Search a number
-
+
213202468 = 22193277997
BaseRepresentation
bin11001011010100…
…11011000100100
3112212011210210201
430231103120210
5414034434333
633053400244
75166122353
oct1455233044
9485153721
10213202468
11aa390196
125b499084
133522a70b
142045b99a
1513ab617d
hexcb53624

213202468 has 24 divisors (see below), whose sum is σ = 376768952. Its totient is φ = 105560064.

The previous prime is 213202463. The next prime is 213202489. The reversal of 213202468 is 864202312.

It can be written as a sum of positive squares in 4 ways, for example, as 16305444 + 196897024 = 4038^2 + 14032^2 .

It is a super-2 number, since 2×2132024682 = 90910584722582048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213202463) 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, 213346 + ... + 214342.

Almost surely, 2213202468 is an apocalyptic number.

It is an amenable number.

213202468 is a deficient number, since it is larger than the sum of its proper divisors (163566484).

213202468 is a wasteful number, since it uses less digits than its factorization.

213202468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 213202468 is about 14601.4543111294. The cubic root of 213202468 is about 597.3984286067.

The spelling of 213202468 in words is "two hundred thirteen million, two hundred two thousand, four hundred sixty-eight".

Divisors: 1 2 4 193 277 386 554 772 997 1108 1994 3988 53461 106922 192421 213844 276169 384842 552338 769684 1104676 53300617 106601234 213202468