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108403206589 = 142775965807
BaseRepresentation
bin110010011110101010…
…1011010100110111101
3101100210210202110121101
41210331111122212331
53234002210102324
6121444424533101
710555222024036
oct1447525324675
9340723673541
10108403206589
1141a78869637
1219014021191
13a2b7747832
1453650c5a8d
152c46d2d944
hex193d55a9bd

108403206589 has 4 divisors (see below), whose sum is σ = 108479173824. Its totient is φ = 108327239356.

The previous prime is 108403206563. The next prime is 108403206599. The reversal of 108403206589 is 985602304801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 985602304801 = 5871679049923.

It is a cyclic number.

It is not a de Polignac number, because 108403206589 - 25 = 108403206557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108403206599) 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, 37981477 + ... + 37984330.

It is an arithmetic number, because the mean of its divisors is an integer number (27119793456).

Almost surely, 2108403206589 is an apocalyptic number.

It is an amenable number.

108403206589 is a deficient number, since it is larger than the sum of its proper divisors (75967235).

108403206589 is an equidigital number, since it uses as much as digits as its factorization.

108403206589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75967234.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 108403206589 in words is "one hundred eight billion, four hundred three million, two hundred six thousand, five hundred eighty-nine".

Divisors: 1 1427 75965807 108403206589