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10108865 = 513155521
BaseRepresentation
bin100110100011…
…111111000001
3201000120202102
4212203333001
510041440430
61000400145
7151631624
oct46437701
921016672
1010108865
115784a38
123476055
13212c2a0
1414b1dbb
15d4a345
hex9a3fc1

10108865 has 8 divisors (see below), whose sum is σ = 13063848. Its totient is φ = 7464960.

The previous prime is 10108843. The next prime is 10108873. The reversal of 10108865 is 56880101.

It can be written as a sum of positive squares in 4 ways, for example, as 97969 + 10010896 = 313^2 + 3164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10108865 - 26 = 10108801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77696 + ... + 77825.

It is an arithmetic number, because the mean of its divisors is an integer number (1632981).

Almost surely, 210108865 is an apocalyptic number.

It is an amenable number.

10108865 is a deficient number, since it is larger than the sum of its proper divisors (2954983).

10108865 is a wasteful number, since it uses less digits than its factorization.

10108865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155539.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 10108865 is about 3179.4441338070. Note that the first 3 decimals coincide. The cubic root of 10108865 is about 216.2224574275. Note that the first 3 decimals are identical.

Adding to 10108865 its reverse (56880101), we get a palindrome (66988966).

The spelling of 10108865 in words is "ten million, one hundred eight thousand, eight hundred sixty-five".

Divisors: 1 5 13 65 155521 777605 2021773 10108865