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109223969 = 686915901
BaseRepresentation
bin1101000001010…
…10000000100001
321121112011010012
412200222000201
5210430131334
614501014305
72464250141
oct640520041
9247464105
10109223969
1156721648
12306b4395
131982308a
1410712921
1598c79ce
hex682a021

109223969 has 4 divisors (see below), whose sum is σ = 109246740. Its totient is φ = 109201200.

The previous prime is 109223957. The next prime is 109223993. The reversal of 109223969 is 969322901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56806369 + 52417600 = 7537^2 + 7240^2 .

It is a cyclic number.

It is not a de Polignac number, because 109223969 - 220 = 108175393 is a prime.

It is a super-2 number, since 2×1092239692 = 23859750808225922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109223069) 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, 1082 + ... + 14819.

It is an arithmetic number, because the mean of its divisors is an integer number (27311685).

Almost surely, 2109223969 is an apocalyptic number.

It is an amenable number.

109223969 is a deficient number, since it is larger than the sum of its proper divisors (22771).

109223969 is an equidigital number, since it uses as much as digits as its factorization.

109223969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22770.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 109223969 is about 10451.0271743977. The cubic root of 109223969 is about 478.0125709362.

The spelling of 109223969 in words is "one hundred nine million, two hundred twenty-three thousand, nine hundred sixty-nine".

Divisors: 1 6869 15901 109223969