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213286892 = 22713585953
BaseRepresentation
bin11001011011001…
…11111111101100
3112212100002121112
430231213333230
5414100140032
633055251152
75166623450
oct1455477754
9485302545
10213286892
11aa438665
125b519ab8
1335259c80
1420480660
1513ad11b2
hexcb67fec

213286892 has 24 divisors (see below), whose sum is σ = 459387936. Its totient is φ = 84377088.

The previous prime is 213286891. The next prime is 213286897. The reversal of 213286892 is 298682312.

It is not an unprimeable number, because it can be changed into a prime (213286891) 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 7 ways as a sum of consecutive naturals, for example, 292613 + ... + 293340.

It is an arithmetic number, because the mean of its divisors is an integer number (19141164).

Almost surely, 2213286892 is an apocalyptic number.

It is an amenable number.

213286892 is an abundant number, since it is smaller than the sum of its proper divisors (246101044).

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

213286892 is a wasteful number, since it uses less digits than its factorization.

213286892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585977 (or 585975 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 213286892 is about 14604.3449699054. The cubic root of 213286892 is about 597.4772708918.

The spelling of 213286892 in words is "two hundred thirteen million, two hundred eighty-six thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 585953 1171906 2343812 4101671 7617389 8203342 15234778 16406684 30469556 53321723 106643446 213286892