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108235069 = 137829953
BaseRepresentation
bin1100111001110…
…00100100111101
321112122220121021
412130320210331
5210202010234
614423504141
72452661065
oct634704475
9245586537
10108235069
1156106678
12302b8051
1319567c27
14105363a5
15977e9b4
hex673893d

108235069 has 8 divisors (see below), whose sum is σ = 109271160. Its totient is φ = 107202816.

The previous prime is 108235067. The next prime is 108235081. The reversal of 108235069 is 960532801.

108235069 = T37 + T38 + ... + T865.

It can be written as a sum of positive squares in 4 ways, for example, as 19027044 + 89208025 = 4362^2 + 9445^2 .

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 108235069 - 21 = 108235067 is a prime.

It is a super-2 number, since 2×1082350692 = 23429660322869522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108235067) 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, 113097 + ... + 114049.

It is an arithmetic number, because the mean of its divisors is an integer number (13658895).

Almost surely, 2108235069 is an apocalyptic number.

It is an amenable number.

108235069 is a deficient number, since it is larger than the sum of its proper divisors (1036091).

108235069 is an equidigital number, since it uses as much as digits as its factorization.

108235069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 108235069 is about 10403.6084605295. The cubic root of 108235069 is about 476.5655733472.

The spelling of 108235069 in words is "one hundred eight million, two hundred thirty-five thousand, sixty-nine".

Divisors: 1 137 829 953 113573 130561 790037 108235069