Search a number
-
+
108870065 = 5175312421
BaseRepresentation
bin1100111110100…
…11100110110001
321120212011122122
412133103212301
5210332320230
614445244025
72461244303
oct637234661
9246764578
10108870065
11564aa767
1230563615
131972ac75
141065d973
159857be5
hex67d39b1

108870065 has 8 divisors (see below), whose sum is σ = 130729128. Its totient is φ = 87039360.

The previous prime is 108870061. The next prime is 108870071. The reversal of 108870065 is 560078801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10543009 + 98327056 = 3247^2 + 9916^2 .

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

It is not a de Polignac number, because 108870065 - 22 = 108870061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108870061) 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, 2555 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (16341141).

Almost surely, 2108870065 is an apocalyptic number.

It is an amenable number.

108870065 is a deficient number, since it is larger than the sum of its proper divisors (21859063).

108870065 is a wasteful number, since it uses less digits than its factorization.

108870065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 108870065 is about 10434.0818954041. The cubic root of 108870065 is about 477.4957319867.

The spelling of 108870065 in words is "one hundred eight million, eight hundred seventy thousand, sixty-five".

Divisors: 1 5 1753 8765 12421 62105 21774013 108870065