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211110093 = 3231756667
BaseRepresentation
bin11001001010101…
…00100011001101
3112201020111121100
430211110203031
5413021010333
632540453313
75142256215
oct1445244315
9481214540
10211110093
11a9191157
125a84a239
133497721c
1420075245
1513801213
hexc9548cd

211110093 has 12 divisors (see below), whose sum is σ = 314773888. Its totient is φ = 136199880.

The previous prime is 211110089. The next prime is 211110101. The reversal of 211110093 is 390011112.

It is not a de Polignac number, because 211110093 - 22 = 211110089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211110073) 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 11 ways as a sum of consecutive naturals, for example, 378055 + ... + 378612.

Almost surely, 2211110093 is an apocalyptic number.

It is an amenable number.

211110093 is a deficient number, since it is larger than the sum of its proper divisors (103663795).

211110093 is a wasteful number, since it uses less digits than its factorization.

211110093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756704 (or 756701 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 211110093 is about 14529.6281094872. The cubic root of 211110093 is about 595.4377053740.

The spelling of 211110093 in words is "two hundred eleven million, one hundred ten thousand, ninety-three".

Divisors: 1 3 9 31 93 279 756667 2270001 6810003 23456677 70370031 211110093