Search a number
-
+
108123663 = 336041221
BaseRepresentation
bin1100111000111…
…01011000001111
321112110020210010
412130131120033
5210134424123
614421244303
72452015224
oct634353017
9245406703
10108123663
115603a9aa
1230263693
13195292cb
141050794b
15975b993
hex671d60f

108123663 has 4 divisors (see below), whose sum is σ = 144164888. Its totient is φ = 72082440.

The previous prime is 108123643. The next prime is 108123679. The reversal of 108123663 is 366321801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366321801 = 3122107267.

It is not a de Polignac number, because 108123663 - 26 = 108123599 is a prime.

It is a super-4 number, since 4×1081236634 (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108123663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108123643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18020608 + ... + 18020613.

It is an arithmetic number, because the mean of its divisors is an integer number (36041222).

Almost surely, 2108123663 is an apocalyptic number.

108123663 is a deficient number, since it is larger than the sum of its proper divisors (36041225).

108123663 is an equidigital number, since it uses as much as digits as its factorization.

108123663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36041224.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 108123663 is about 10398.2528820951. The cubic root of 108123663 is about 476.4020080903.

The spelling of 108123663 in words is "one hundred eight million, one hundred twenty-three thousand, six hundred sixty-three".

Divisors: 1 3 36041221 108123663