Search a number
-
+
213111030032 = 24291049437837
BaseRepresentation
bin1100011001111001101…
…0000100000100010000
3202101002002000000112022
43012132122010010100
511442422410430112
6241522444551012
721253042603235
oct3063632040420
9671062000468
10213111030032
118241a69110a
1235376552468
13171336c7004
14a4594ad78c
155824508d72
hex319e684110

213111030032 has 40 divisors (see below), whose sum is σ = 427548807000. Its totient is φ = 102782876672.

The previous prime is 213111030017. The next prime is 213111030049. The reversal of 213111030032 is 230030111312.

It can be written as a sum of positive squares in 4 ways, for example, as 76273182976 + 136837847056 = 276176^2 + 369916^2 .

It is a super-2 number, since 2×2131110300322 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267818 + ... + 705654.

It is an arithmetic number, because the mean of its divisors is an integer number (10688720175).

Almost surely, 2213111030032 is an apocalyptic number.

It is an amenable number.

213111030032 is an abundant number, since it is smaller than the sum of its proper divisors (214437776968).

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

213111030032 is a wasteful number, since it uses less digits than its factorization.

213111030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438923 (or 438917 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 213111030032 its reverse (230030111312), we get a palindrome (443141141344).

The spelling of 213111030032 in words is "two hundred thirteen billion, one hundred eleven million, thirty thousand, thirty-two".

Divisors: 1 2 4 8 16 29 58 116 232 464 1049 2098 4196 8392 16784 30421 60842 121684 243368 437837 486736 875674 1751348 3502696 7005392 12697273 25394546 50789092 101578184 203156368 459291013 918582026 1837164052 3674328104 7348656208 13319439377 26638878754 53277757508 106555515016 213111030032