Search a number
-
+
2105404141 = 4348962887
BaseRepresentation
bin111110101111101…
…1110101011101101
312102201200121112011
41331133132223231
513302440413031
6544530041221
7103113432331
oct17537365355
95381617464
102105404141
1199049a325
124a9119211
13277260889
1415d8957c1
15c4c836b1
hex7d7deaed

2105404141 has 4 divisors (see below), whose sum is σ = 2154367072. Its totient is φ = 2056441212.

The previous prime is 2105404139. The next prime is 2105404159. The reversal of 2105404141 is 1414045012.

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.

It is a cyclic number.

It is not a de Polignac number, because 2105404141 - 21 = 2105404139 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 (2105404541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24481401 + ... + 24481486.

It is an arithmetic number, because the mean of its divisors is an integer number (538591768).

Almost surely, 22105404141 is an apocalyptic number.

It is an amenable number.

2105404141 is a deficient number, since it is larger than the sum of its proper divisors (48962931).

2105404141 is an equidigital number, since it uses as much as digits as its factorization.

2105404141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48962930.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2105404141 is about 45884.6830761639. The cubic root of 2105404141 is about 1281.6767050661.

Adding to 2105404141 its reverse (1414045012), we get a palindrome (3519449153).

The spelling of 2105404141 in words is "two billion, one hundred five million, four hundred four thousand, one hundred forty-one".

Divisors: 1 43 48962887 2105404141