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103103871061 = 149691972289
BaseRepresentation
bin110000000000101111…
…0000011100001010101
3100212010111010022220011
41200001132003201111
53142124042333221
6115210521440221
710310003305162
oct1400136034125
9325114108804
10103103871061
113a7a94a13a4
1217b95340071
139951891739
144dc1385069
152a3699a1e1
hex1801783855

103103871061 has 4 divisors (see below), whose sum is σ = 103795843500. Its totient is φ = 102411898624.

The previous prime is 103103871053. The next prime is 103103871077. The reversal of 103103871061 is 160178301301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7764958161 + 95338912900 = 88119^2 + 308770^2 .

It is a cyclic number.

It is not a de Polignac number, because 103103871061 - 23 = 103103871053 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 (103103872061) 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, 345985996 + ... + 345986293.

It is an arithmetic number, because the mean of its divisors is an integer number (25948960875).

Almost surely, 2103103871061 is an apocalyptic number.

It is an amenable number.

103103871061 is a deficient number, since it is larger than the sum of its proper divisors (691972439).

103103871061 is an equidigital number, since it uses as much as digits as its factorization.

103103871061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691972438.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 103103871061 in words is "one hundred three billion, one hundred three million, eight hundred seventy-one thousand, sixty-one".

Divisors: 1 149 691972289 103103871061