Search a number
-
+
210534772 = 2273173887
BaseRepresentation
bin11001000110010…
…00000101110100
3112200011021102011
430203020011310
5412344103042
632520254004
75134342000
oct1443100564
9480137364
10210534772
11a8928988
125a611304
13348053b6
141dd65700
151373aa17
hexc8c8174

210534772 has 48 divisors (see below), whose sum is σ = 432633600. Its totient is φ = 89606496.

The previous prime is 210534743. The next prime is 210534787. The reversal of 210534772 is 277435012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236913 + ... + 237799.

It is an arithmetic number, because the mean of its divisors is an integer number (9013200).

Almost surely, 2210534772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210534772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216316800).

210534772 is an abundant number, since it is smaller than the sum of its proper divisors (222098828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210534772 is a wasteful number, since it uses less digits than its factorization.

210534772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 210534772 is about 14509.8164013195. The cubic root of 210534772 is about 594.8963141125.

Adding to 210534772 its reverse (277435012), we get a palindrome (487969784).

The spelling of 210534772 in words is "two hundred ten million, five hundred thirty-four thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 98 173 196 343 346 686 692 887 1211 1372 1774 2422 3548 4844 6209 8477 12418 16954 24836 33908 43463 59339 86926 118678 153451 173852 237356 304241 306902 608482 613804 1074157 1216964 2148314 4296628 7519099 15038198 30076396 52633693 105267386 210534772