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109490111 = 864112671
BaseRepresentation
bin1101000011010…
…10111110111111
321122000200012022
412201222332333
5211012140421
614510430355
72466436103
oct641527677
9248020168
10109490111
11568935a5
12308023bb
13198b7263
1410781903
15992b7ab
hex686afbf

109490111 has 4 divisors (see below), whose sum is σ = 109511424. Its totient is φ = 109468800.

The previous prime is 109490099. The next prime is 109490113. The reversal of 109490111 is 111094901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111094901 = 127874763.

It is a cyclic number.

It is not a de Polignac number, because 109490111 - 210 = 109489087 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 (109490113) 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, 2306 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (27377856).

Almost surely, 2109490111 is an apocalyptic number.

109490111 is a deficient number, since it is larger than the sum of its proper divisors (21313).

109490111 is an equidigital number, since it uses as much as digits as its factorization.

109490111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21312.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 109490111 is about 10463.7522428620. The cubic root of 109490111 is about 478.4005078587.

The spelling of 109490111 in words is "one hundred nine million, four hundred ninety thousand, one hundred eleven".

Divisors: 1 8641 12671 109490111