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2881520889 = 31373885151
BaseRepresentation
bin1010101111000000…
…1000010011111001
321102211002102112220
42223300020103321
521400132132024
61153532554253
7131256344352
oct25360102371
97384072486
102881520889
1112495a8325
12685022989
1336bca0960
141d49a4d29
1511ce8de79
hexabc084f9

2881520889 has 8 divisors (see below), whose sum is σ = 4137568512. Its totient is φ = 1773243600.

The previous prime is 2881520869. The next prime is 2881520899. The reversal of 2881520889 is 9880251882.

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

It is not a de Polignac number, because 2881520889 - 28 = 2881520633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2881520849) 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, 36942537 + ... + 36942614.

It is an arithmetic number, because the mean of its divisors is an integer number (517196064).

Almost surely, 22881520889 is an apocalyptic number.

It is an amenable number.

2881520889 is a deficient number, since it is larger than the sum of its proper divisors (1256047623).

2881520889 is a wasteful number, since it uses less digits than its factorization.

2881520889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73885167.

The product of its (nonzero) digits is 737280, while the sum is 51.

The square root of 2881520889 is about 53679.7996363623. The cubic root of 2881520889 is about 1423.0077240149.

The spelling of 2881520889 in words is "two billion, eight hundred eighty-one million, five hundred twenty thousand, eight hundred eighty-nine".

Divisors: 1 3 13 39 73885151 221655453 960506963 2881520889