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109257043 = 716019749
BaseRepresentation
bin1101000001100…
…10000101010011
321121120211111011
412200302011103
5210432211133
614501431351
72464445440
oct640620523
9247524434
10109257043
1156744485
123070b557
131983514c
14107209c7
1598d26cd
hex6832153

109257043 has 8 divisors (see below), whose sum is σ = 124956000. Its totient is φ = 93580800.

The previous prime is 109256993. The next prime is 109257047. The reversal of 109257043 is 340752901.

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 109257043 - 217 = 109125971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109256996 and 109257014.

It is not an unprimeable number, because it can be changed into a prime (109257047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6333 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (15619500).

Almost surely, 2109257043 is an apocalyptic number.

109257043 is a deficient number, since it is larger than the sum of its proper divisors (15698957).

109257043 is an equidigital number, since it uses as much as digits as its factorization.

109257043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11357.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 109257043 is about 10452.6093871339. The cubic root of 109257043 is about 478.0608149020.

The spelling of 109257043 in words is "one hundred nine million, two hundred fifty-seven thousand, forty-three".

Divisors: 1 7 1601 9749 11207 68243 15608149 109257043