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109068229 = 794913721
BaseRepresentation
bin1101000000000…
…11111111000101
321121020020111001
412200003333011
5210410140404
614453413301
72463031114
oct640037705
9247206431
10109068229
1156625636
123063a231
131979a21a
14106b1c7b
1598967a4
hex6803fc5

109068229 has 4 divisors (see below), whose sum is σ = 109089900. Its totient is φ = 109046560.

The previous prime is 109068191. The next prime is 109068251. The reversal of 109068229 is 922860901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922860901 = 2340124387.

It can be written as a sum of positive squares in 2 ways, for example, as 36784225 + 72284004 = 6065^2 + 8502^2 .

It is a cyclic number.

It is not a de Polignac number, because 109068229 - 213 = 109060037 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 (109068299) 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 3 ways as a sum of consecutive naturals, for example, 1089 + ... + 14809.

It is an arithmetic number, because the mean of its divisors is an integer number (27272475).

Almost surely, 2109068229 is an apocalyptic number.

It is an amenable number.

109068229 is a deficient number, since it is larger than the sum of its proper divisors (21671).

109068229 is an equidigital number, since it uses as much as digits as its factorization.

109068229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21670.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 109068229 is about 10443.5735742130. The cubic root of 109068229 is about 477.7852670761.

The spelling of 109068229 in words is "one hundred nine million, sixty-eight thousand, two hundred twenty-nine".

Divisors: 1 7949 13721 109068229