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2028881141 = 7876133083
BaseRepresentation
bin111100011101110…
…0100010011110101
312020101200211200222
41320323210103311
513123343144031
6533153544125
7101164130240
oct17073442365
95211624628
102028881141
11951283481
12487575045
13264449cb1
14153656257
15bd1b9e7b
hex78ee44f5

2028881141 has 8 divisors (see below), whose sum is σ = 2319056064. Its totient is φ = 1738789920.

The previous prime is 2028881119. The next prime is 2028881143. The reversal of 2028881141 is 1411888202.

It is a happy number.

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

It is not a de Polignac number, because 2028881141 - 26 = 2028881077 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 (2028881143) 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, 44786 + ... + 77868.

It is an arithmetic number, because the mean of its divisors is an integer number (289882008).

Almost surely, 22028881141 is an apocalyptic number.

It is an amenable number.

2028881141 is a deficient number, since it is larger than the sum of its proper divisors (290174923).

2028881141 is an equidigital number, since it uses as much as digits as its factorization.

2028881141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41851.

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 2028881141 is about 45043.1031457647. The cubic root of 2028881141 is about 1265.9567490613.

The spelling of 2028881141 in words is "two billion, twenty-eight million, eight hundred eighty-one thousand, one hundred forty-one".

Divisors: 1 7 8761 33083 61327 231581 289840163 2028881141