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109196305 = 521839261
BaseRepresentation
bin1101000001000…
…11010000010001
321121110202011121
412200203100101
5210423240210
614500242241
72464103401
oct640432021
9247422147
10109196305
1156702889
12306a0381
13198135ca
1410706801
1598be6da
hex6823411

109196305 has 4 divisors (see below), whose sum is σ = 131035572. Its totient is φ = 87357040.

The previous prime is 109196239. The next prime is 109196333. The reversal of 109196305 is 503691901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503691901 = 2341215161.

It can be written as a sum of positive squares in 2 ways, for example, as 72726784 + 36469521 = 8528^2 + 6039^2 .

It is not a de Polignac number, because 109196305 - 27 = 109196177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10919626 + ... + 10919635.

It is an arithmetic number, because the mean of its divisors is an integer number (32758893).

Almost surely, 2109196305 is an apocalyptic number.

It is an amenable number.

109196305 is a deficient number, since it is larger than the sum of its proper divisors (21839267).

109196305 is an equidigital number, since it uses as much as digits as its factorization.

109196305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21839266.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 109196305 is about 10449.7035843128. The cubic root of 109196305 is about 477.9722108808.

The spelling of 109196305 in words is "one hundred nine million, one hundred ninety-six thousand, three hundred five".

Divisors: 1 5 21839261 109196305