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213030983 = 11191397333
BaseRepresentation
bin11001011001010…
…01100001000111
3112211212002120102
430230221201013
5414013442413
633045554315
75164506404
oct1454514107
9484762512
10213030983
11aa283370
125b41599b
133519a649
14204152ab
1513a80458
hexcb29847

213030983 has 16 divisors (see below), whose sum is σ = 246422400. Its totient is φ = 182126880.

The previous prime is 213030967. The next prime is 213030997. The reversal of 213030983 is 389030312.

It is a cyclic number.

It is not a de Polignac number, because 213030983 - 24 = 213030967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213030583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25385 + ... + 32717.

It is an arithmetic number, because the mean of its divisors is an integer number (15401400).

Almost surely, 2213030983 is an apocalyptic number.

213030983 is a deficient number, since it is larger than the sum of its proper divisors (33391417).

213030983 is a wasteful number, since it uses less digits than its factorization.

213030983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 213030983 is about 14595.5809408190. The cubic root of 213030983 is about 597.2382172838.

The spelling of 213030983 in words is "two hundred thirteen million, thirty thousand, nine hundred eighty-three".

Divisors: 1 11 19 139 209 1529 2641 7333 29051 80663 139327 1019287 1532597 11212157 19366453 213030983