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3087881 = 61223227
BaseRepresentation
bin1011110001111000001001
312210212202222
423301320021
51242303011
6150103425
735150366
oct13617011
95725688
103087881
111819a75
12104ab75
13841664
145a546d
1540eddb
hex2f1e09

3087881 has 8 divisors (see below), whose sum is σ = 3166464. Its totient is φ = 3010320.

The previous prime is 3087871. The next prime is 3087893. The reversal of 3087881 is 1887803.

3087881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3087881 is a prime.

It is a super-2 number, since 2×30878812 = 19070018140322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3087811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13490 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (395808).

Almost surely, 23087881 is an apocalyptic number.

It is an amenable number.

3087881 is a deficient number, since it is larger than the sum of its proper divisors (78583).

3087881 is a wasteful number, since it uses less digits than its factorization.

3087881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 3087881 is about 1757.2367512660. The cubic root of 3087881 is about 145.6197177992.

The spelling of 3087881 in words is "three million, eighty-seven thousand, eight hundred eighty-one".

Divisors: 1 61 223 227 13603 13847 50621 3087881