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211449032 = 2326431129
BaseRepresentation
bin11001001101001…
…11010011001000
3112201212201112122
430212213103020
5413112332112
632552030412
75145200324
oct1446472310
9481781478
10211449032
11a93a2873
125a992408
1334a65592
1420122984
151386b872
hexc9a74c8

211449032 has 8 divisors (see below), whose sum is σ = 396466950. Its totient is φ = 105724512.

The previous prime is 211449019. The next prime is 211449061. The reversal of 211449032 is 230944112.

It can be written as a sum of positive squares in only one way, i.e., 156600196 + 54848836 = 12514^2 + 7406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 211448992 and 211449010.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13215557 + ... + 13215572.

Almost surely, 2211449032 is an apocalyptic number.

It is an amenable number.

211449032 is a deficient number, since it is larger than the sum of its proper divisors (185017918).

211449032 is a wasteful number, since it uses less digits than its factorization.

211449032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26431135 (or 26431131 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 211449032 is about 14541.2871507305. The cubic root of 211449032 is about 595.7561950421.

The spelling of 211449032 in words is "two hundred eleven million, four hundred forty-nine thousand, thirty-two".

Divisors: 1 2 4 8 26431129 52862258 105724516 211449032