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213355205352 = 233210333286777
BaseRepresentation
bin1100011010110011110…
…1100001001011101000
3202101201002110102002200
43012230331201023220
511443422413032402
6242003010300200
721262066215522
oct3065475411350
9671632412080
10213355205352
11825354a66a3
1235424287660
131717217a453
14a47dab0a12
15583ab8c21c
hex31acf612e8

213355205352 has 48 divisors (see below), whose sum is σ = 577894951140. Its totient is φ = 71111271168.

The previous prime is 213355205351. The next prime is 213355205353. The reversal of 213355205352 is 253502553312.

213355205352 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 552 + 0 + 53 + 52 = 666.

213355205352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213355205351) and next prime (213355205353).

It can be written as a sum of positive squares in 2 ways, for example, as 207121471236 + 6233734116 = 455106^2 + 78954^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (213355205351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600588 + ... + 887364.

Almost surely, 2213355205352 is an apocalyptic number.

It is an amenable number.

213355205352 is an abundant number, since it is smaller than the sum of its proper divisors (364539745788).

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

213355205352 is a wasteful number, since it uses less digits than its factorization.

213355205352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297122 (or 297115 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 213355205352 its reverse (253502553312), we get a palindrome (466857758664).

The spelling of 213355205352 in words is "two hundred thirteen billion, three hundred fifty-five million, two hundred five thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 10333 20666 30999 41332 61998 82664 92997 123996 185994 247992 286777 371988 573554 743976 860331 1147108 1720662 2294216 2580993 3441324 5161986 6882648 10323972 20647944 2963266741 5926533482 8889800223 11853066964 17779600446 23706133928 26669400669 35559200892 53338801338 71118401784 106677602676 213355205352