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108984945 = 357265663
BaseRepresentation
bin1100111111011…
…11101001110001
321121002000020110
412133233221301
5210400004240
614451531533
72462233236
oct637575161
9247060213
10108984945
1156579003
12305b9ba9
131976b344
141068d78d
15987bc80
hex67efa71

108984945 has 8 divisors (see below), whose sum is σ = 174375936. Its totient is φ = 58125296.

The previous prime is 108984877. The next prime is 108984949. The reversal of 108984945 is 549489801.

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 108984945 - 213 = 108976753 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 108984894 and 108984903.

It is not an unprimeable number, because it can be changed into a prime (108984949) 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, 3632817 + ... + 3632846.

It is an arithmetic number, because the mean of its divisors is an integer number (21796992).

Almost surely, 2108984945 is an apocalyptic number.

108984945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108984945 is a deficient number, since it is larger than the sum of its proper divisors (65390991).

108984945 is an equidigital number, since it uses as much as digits as its factorization.

108984945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265671.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 108984945 is about 10439.5854802765. The cubic root of 108984945 is about 477.6636245619.

The spelling of 108984945 in words is "one hundred eight million, nine hundred eighty-four thousand, nine hundred forty-five".

Divisors: 1 3 5 15 7265663 21796989 36328315 108984945