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109631071 = 1114966889
BaseRepresentation
bin1101000100011…
…01011001011111
321122021211120001
412202031121133
5211031143241
614513435131
72500564054
oct642153137
9248254501
10109631071
115697a4a0
123086baa7
1319936474
14107bb02b
159958431
hex688d65f

109631071 has 8 divisors (see below), whose sum is σ = 120402000. Its totient is φ = 98994240.

The previous prime is 109631063. The next prime is 109631077. The reversal of 109631071 is 170136901.

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 109631071 - 23 = 109631063 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 (109631077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31806 + ... + 35083.

It is an arithmetic number, because the mean of its divisors is an integer number (15050250).

Almost surely, 2109631071 is an apocalyptic number.

109631071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109631071 is a deficient number, since it is larger than the sum of its proper divisors (10770929).

109631071 is a wasteful number, since it uses less digits than its factorization.

109631071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67049.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 109631071 is about 10470.4857098417. The cubic root of 109631071 is about 478.6057209640.

Adding to 109631071 its reverse (170136901), we get a palindrome (279767972).

The spelling of 109631071 in words is "one hundred nine million, six hundred thirty-one thousand, seventy-one".

Divisors: 1 11 149 1639 66889 735779 9966461 109631071