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109971017 = 1315975297
BaseRepresentation
bin1101000111000…
…00011001001001
321122221002212122
412203200121021
5211123033032
614525021025
72503511132
oct643403111
9248832778
10109971017
1157091942
12309b4775
1319a25110
1410868c89
1599c4012
hex68e0649

109971017 has 8 divisors (see below), whose sum is σ = 118526856. Its totient is φ = 101428992.

The previous prime is 109971013. The next prime is 109971091. The reversal of 109971017 is 710179901.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4682896 + 105288121 = 2164^2 + 10261^2 .

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 109971017 - 22 = 109971013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109971013) 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, 18113 + ... + 23409.

It is an arithmetic number, because the mean of its divisors is an integer number (14815857).

Almost surely, 2109971017 is an apocalyptic number.

It is an amenable number.

109971017 is a deficient number, since it is larger than the sum of its proper divisors (8555839).

109971017 is a wasteful number, since it uses less digits than its factorization.

109971017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 109971017 is about 10486.7066803644. The cubic root of 109971017 is about 479.0999002760.

The spelling of 109971017 in words is "one hundred nine million, nine hundred seventy-one thousand, seventeen".

Divisors: 1 13 1597 5297 20761 68861 8459309 109971017