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2109193 = 43181271
BaseRepresentation
bin1000000010111100001001
310222011021021
420002330021
51014443233
6113112441
723633152
oct10027411
93864237
102109193
111210739
12858721
1358b058
143cc929
152b9e2d
hex202f09

2109193 has 8 divisors (see below), whose sum is σ = 2178176. Its totient is φ = 2041200.

The previous prime is 2109179. The next prime is 2109203. The reversal of 2109193 is 3919012.

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 2109193 - 25 = 2109161 is a prime.

It is a super-2 number, since 2×21091932 = 8897390222498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7648 + ... + 7918.

It is an arithmetic number, because the mean of its divisors is an integer number (272272).

22109193 is an apocalyptic number.

It is an amenable number.

2109193 is a deficient number, since it is larger than the sum of its proper divisors (68983).

2109193 is a wasteful number, since it uses less digits than its factorization.

2109193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 2109193 is about 1452.3060972123. The cubic root of 2109193 is about 128.2445074132.

The spelling of 2109193 in words is "two million, one hundred nine thousand, one hundred ninety-three".

Divisors: 1 43 181 271 7783 11653 49051 2109193