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213068441 = 373357077
BaseRepresentation
bin11001011001100…
…10101010011001
3112211220222221202
430230302222121
5414021142231
633050443545
75165023535
oct1454625231
9484828852
10213068441
11aa2a9523
125b4335b5
13351b1701
1420424bc5
1513a8b5cb
hexcb32a99

213068441 has 4 divisors (see below), whose sum is σ = 213129252. Its totient is φ = 213007632.

The previous prime is 213068419. The next prime is 213068461. The reversal of 213068441 is 144860312.

213068441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82446400 + 130622041 = 9080^2 + 11429^2 .

It is a cyclic number.

It is not a de Polignac number, because 213068441 - 26 = 213068377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213068461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24806 + ... + 32271.

It is an arithmetic number, because the mean of its divisors is an integer number (53282313).

Almost surely, 2213068441 is an apocalyptic number.

It is an amenable number.

213068441 is a deficient number, since it is larger than the sum of its proper divisors (60811).

213068441 is an equidigital number, since it uses as much as digits as its factorization.

213068441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60810.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 213068441 is about 14596.8640810278. The cubic root of 213068441 is about 597.2732200766.

The spelling of 213068441 in words is "two hundred thirteen million, sixty-eight thousand, four hundred forty-one".

Divisors: 1 3733 57077 213068441