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2881987201 = 29531875073
BaseRepresentation
bin1010101111000111…
…1010001010000001
321102211222010012201
42223301322022001
521400242042301
61153550553201
7131263326022
oct25361721201
97384863181
102881987201
111249896705
12685208801
1336c104c92
141d4a86c49
1511d032201
hexabc7a281

2881987201 has 8 divisors (see below), whose sum is σ = 3037619880. Its totient is φ = 2730104832.

The previous prime is 2881987187. The next prime is 2881987217. The reversal of 2881987201 is 1027891882.

It can be written as a sum of positive squares in 4 ways, for example, as 157251600 + 2724735601 = 12540^2 + 52199^2 .

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 2881987201 - 215 = 2881954433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2881997201) 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, 936000 + ... + 939073.

It is an arithmetic number, because the mean of its divisors is an integer number (379702485).

Almost surely, 22881987201 is an apocalyptic number.

It is an amenable number.

2881987201 is a deficient number, since it is larger than the sum of its proper divisors (155632679).

2881987201 is a wasteful number, since it uses less digits than its factorization.

2881987201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875155.

The product of its (nonzero) digits is 129024, while the sum is 46.

The square root of 2881987201 is about 53684.1429194879. The cubic root of 2881987201 is about 1423.0844809096.

The spelling of 2881987201 in words is "two billion, eight hundred eighty-one million, nine hundred eighty-seven thousand, two hundred one".

Divisors: 1 29 53 1537 1875073 54377117 99378869 2881987201