Search a number
-
+
2105731141 = 31671013833
BaseRepresentation
bin111110110000010…
…1110100001000101
312102202022020002021
41331200232201011
513303031344031
6544541043141
7103116263563
oct17540564105
95382266067
102105731141
119906a2a78
124a92564b1
13277346677
1415d93ca33
15c4cea511
hex7d82e845

2105731141 has 8 divisors (see below), whose sum is σ = 2206102784. Its totient is φ = 2007387360.

The previous prime is 2105731139. The next prime is 2105731169. The reversal of 2105731141 is 1411375012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105731141 - 21 = 2105731139 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 (2105731241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504840 + ... + 508993.

It is an arithmetic number, because the mean of its divisors is an integer number (275762848).

Almost surely, 22105731141 is an apocalyptic number.

It is an amenable number.

2105731141 is a deficient number, since it is larger than the sum of its proper divisors (100371643).

2105731141 is a wasteful number, since it uses less digits than its factorization.

2105731141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013931.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 2105731141 is about 45888.2462183945. The cubic root of 2105731141 is about 1281.7430559990.

The spelling of 2105731141 in words is "two billion, one hundred five million, seven hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 31 67 2077 1013833 31428823 67926811 2105731141