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109827131 = 711546861
BaseRepresentation
bin1101000101111…
…01010000111011
321122122210111112
412202331100323
5211103432011
614521550535
72502341501
oct642752073
9248583445
10109827131
1156aa3827
123094544b
13199a478b
141082c671
15999658b
hex68bd43b

109827131 has 4 divisors (see below), whose sum is σ = 111374064. Its totient is φ = 108280200.

The previous prime is 109827119. The next prime is 109827161. The reversal of 109827131 is 131728901.

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

It is a cyclic number.

It is not a de Polignac number, because 109827131 - 210 = 109826107 is a prime.

It is a super-2 number, since 2×1098271312 = 24123997407382322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109827161) 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, 773360 + ... + 773501.

It is an arithmetic number, because the mean of its divisors is an integer number (27843516).

Almost surely, 2109827131 is an apocalyptic number.

109827131 is a deficient number, since it is larger than the sum of its proper divisors (1546933).

109827131 is an equidigital number, since it uses as much as digits as its factorization.

109827131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546932.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 109827131 is about 10479.8440350990. The cubic root of 109827131 is about 478.8908577568.

The spelling of 109827131 in words is "one hundred nine million, eight hundred twenty-seven thousand, one hundred thirty-one".

Divisors: 1 71 1546861 109827131