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108331497 = 3217708049
BaseRepresentation
bin1100111010100…
…00000111101001
321112211210212200
412131100013221
5210213101442
614425530413
72453542161
oct635200751
9245753780
10108331497
115617206a
1230343a09
131959caa1
141055d5a1
15979d34c
hex67501e9

108331497 has 12 divisors (see below), whose sum is σ = 165683700. Its totient is φ = 67972608.

The previous prime is 108331469. The next prime is 108331499. The reversal of 108331497 is 794133801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56836521 + 51494976 = 7539^2 + 7176^2 .

It is not a de Polignac number, because 108331497 - 28 = 108331241 is a prime.

It is a super-2 number, since 2×1083314972 = 23471426484522018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108331499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353872 + ... + 354177.

It is an arithmetic number, because the mean of its divisors is an integer number (13806975).

Almost surely, 2108331497 is an apocalyptic number.

108331497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

108331497 is a deficient number, since it is larger than the sum of its proper divisors (57352203).

108331497 is a wasteful number, since it uses less digits than its factorization.

108331497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708072 (or 708069 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 108331497 is about 10408.2417823569. The cubic root of 108331497 is about 476.7070574497.

The spelling of 108331497 in words is "one hundred eight million, three hundred thirty-one thousand, four hundred ninety-seven".

Divisors: 1 3 9 17 51 153 708049 2124147 6372441 12036833 36110499 108331497