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2081408142 = 231134999013
BaseRepresentation
bin111110000001111…
…1100010010001110
312101001112111012110
41330003330102032
513230320030032
6542311444450
7102402451212
oct17403742216
95331474173
102081408142
1197899a820
124a1086726
132722ab668
1415a60a942
15c2ae37cc
hex7c0fc48e

2081408142 has 32 divisors (see below), whose sum is σ = 4543056000. Its totient is φ = 630479520.

The previous prime is 2081408137. The next prime is 2081408159. The reversal of 2081408142 is 2418041802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226428 + ... + 235440.

It is an arithmetic number, because the mean of its divisors is an integer number (141970500).

Almost surely, 22081408142 is an apocalyptic number.

2081408142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2081408142 is an abundant number, since it is smaller than the sum of its proper divisors (2461647858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2081408142 is a wasteful number, since it uses less digits than its factorization.

2081408142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12528.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 2081408142 is about 45622.4521699568. The cubic root of 2081408142 is about 1276.7888548035.

Adding to 2081408142 its reverse (2418041802), we get a palindrome (4499449944).

The spelling of 2081408142 in words is "two billion, eighty-one million, four hundred eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 3499 6998 9013 10497 18026 20994 27039 38489 54078 76978 99143 115467 198286 230934 297429 594858 31536487 63072974 94609461 189218922 346901357 693802714 1040704071 2081408142