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213083869 = 5916322157
BaseRepresentation
bin11001011001101…
…10011011011101
3112211221210010011
430230312123131
5414022140434
633051043221
75165116525
oct1454663335
9484853104
10213083869
11aa30a079
125b440511
13351b873b
142042a685
1513a90e64
hexcb366dd

213083869 has 8 divisors (see below), whose sum is σ = 218034720. Its totient is φ = 208177776.

The previous prime is 213083867. The next prime is 213083887. The reversal of 213083869 is 968380312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213083869 - 21 = 213083867 is a prime.

It is a super-2 number, since 2×2130838692 = 90809470456018322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213083867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (27254340).

Almost surely, 2213083869 is an apocalyptic number.

It is an amenable number.

213083869 is a deficient number, since it is larger than the sum of its proper divisors (4950851).

213083869 is a wasteful number, since it uses less digits than its factorization.

213083869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22379.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 213083869 is about 14597.3925411356. The cubic root of 213083869 is about 597.2876356463.

The spelling of 213083869 in words is "two hundred thirteen million, eighty-three thousand, eight hundred sixty-nine".

Divisors: 1 59 163 9617 22157 1307263 3611591 213083869