Search a number
-
+
108742111 = 195723269
BaseRepresentation
bin1100111101101…
…00010111011111
321120121200010121
412132310113133
5210314221421
614442415411
72460202252
oct636642737
9246550117
10108742111
1156422615
1230501567
13196b495a
1410629099
15982ed41
hex67b45df

108742111 has 4 divisors (see below), whose sum is σ = 114465400. Its totient is φ = 103018824.

The previous prime is 108742103. The next prime is 108742129. The reversal of 108742111 is 111247801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108742111 - 23 = 108742103 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 (108742171) 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, 2861616 + ... + 2861653.

It is an arithmetic number, because the mean of its divisors is an integer number (28616350).

Almost surely, 2108742111 is an apocalyptic number.

108742111 is a deficient number, since it is larger than the sum of its proper divisors (5723289).

108742111 is an equidigital number, since it uses as much as digits as its factorization.

108742111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723288.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 108742111 is about 10427.9485518485. The cubic root of 108742111 is about 477.3085931857.

Adding to 108742111 its reverse (111247801), we get a palindrome (219989912).

The spelling of 108742111 in words is "one hundred eight million, seven hundred forty-two thousand, one hundred eleven".

Divisors: 1 19 5723269 108742111