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108161745101 = 810971333733
BaseRepresentation
bin110010010111011110…
…0010100000011001101
3101100011222101221201022
41210232330110003031
53233003401320401
6121404441323525
710546230443504
oct1445674240315
9340158357638
10108161745101
1141964537a93
1218b671965a5
13a279704707
145340dcd83b
152c30a3471b
hex192ef140cd

108161745101 has 4 divisors (see below), whose sum is σ = 108163159932. Its totient is φ = 108160330272.

The previous prime is 108161745073. The next prime is 108161745119. The reversal of 108161745101 is 101547161801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101547161801 = 293501626269.

It can be written as a sum of positive squares in 2 ways, for example, as 84534981001 + 23626764100 = 290749^2 + 153710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-108161745101 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 (108161745161) 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, 585770 + ... + 747963.

It is an arithmetic number, because the mean of its divisors is an integer number (27040789983).

Almost surely, 2108161745101 is an apocalyptic number.

It is an amenable number.

108161745101 is a deficient number, since it is larger than the sum of its proper divisors (1414831).

108161745101 is an equidigital number, since it uses as much as digits as its factorization.

108161745101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414830.

The product of its (nonzero) digits is 6720, while the sum is 35.

The spelling of 108161745101 in words is "one hundred eight billion, one hundred sixty-one million, seven hundred forty-five thousand, one hundred one".

Divisors: 1 81097 1333733 108161745101