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212108245064 = 231729371453513
BaseRepresentation
bin1100010110001010100…
…0101111100001001000
3202021111012002021011022
43011202220233201020
511433344202320224
6241235143452012
721216145223012
oct3054250574110
9667435067138
10212108245064
1181a55635a01
1235136757008
1317003a23321
14a3a22391b2
1557b647765e
hex3162a2f848

212108245064 has 64 divisors (see below), whose sum is σ = 447391609200. Its totient is φ = 93768966144.

The previous prime is 212108245049. The next prime is 212108245087. The reversal of 212108245064 is 460542801212.

212108245064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 105068036164 + 107040208900 = 324142^2 + 327170^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580829 + ... + 872684.

Almost surely, 2212108245064 is an apocalyptic number.

It is an amenable number.

212108245064 is an abundant number, since it is smaller than the sum of its proper divisors (235283364136).

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

212108245064 is a wasteful number, since it uses less digits than its factorization.

212108245064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453602 (or 1453598 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 212108245064 in words is "two hundred twelve billion, one hundred eight million, two hundred forty-five thousand, sixty-four".

Divisors: 1 2 4 8 17 29 34 37 58 68 74 116 136 148 232 296 493 629 986 1073 1258 1972 2146 2516 3944 4292 5032 8584 18241 36482 72964 145928 1453513 2907026 5814052 11628104 24709721 42151877 49419442 53779981 84303754 98838884 107559962 168607508 197677768 215119924 337215016 430239848 716581909 914259677 1433163818 1559619449 1828519354 2866327636 3119238898 3657038708 5732655272 6238477796 7314077416 12476955592 26513530633 53027061266 106054122532 212108245064