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2081010145 = 54117956711
BaseRepresentation
bin111110000001001…
…1011000111100001
312101000210021020211
41330002123013201
513230214311040
6542255134121
7102366202654
oct17402330741
95330707224
102081010145
119787487a5
124a0b14341
1327219c466
1415a54589b
15c2a658ea
hex7c09b1e1

2081010145 has 16 divisors (see below), whose sum is σ = 2572456320. Its totient is φ = 1615100800.

The previous prime is 2081010143. The next prime is 2081010149. The reversal of 2081010145 is 5410101802.

It is not a de Polignac number, because 2081010145 - 21 = 2081010143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081010143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8340 + ... + 65050.

It is an arithmetic number, because the mean of its divisors is an integer number (160778520).

Almost surely, 22081010145 is an apocalyptic number.

It is an amenable number.

2081010145 is a deficient number, since it is larger than the sum of its proper divisors (491446175).

2081010145 is a wasteful number, since it uses less digits than its factorization.

2081010145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56936.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 2081010145 is about 45618.0901068863. The cubic root of 2081010145 is about 1276.7074691114.

Adding to 2081010145 its reverse (5410101802), we get a palindrome (7491111947).

The spelling of 2081010145 in words is "two billion, eighty-one million, ten thousand, one hundred forty-five".

Divisors: 1 5 41 179 205 895 7339 36695 56711 283555 2325151 10151269 11625755 50756345 416202029 2081010145