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3087421992 = 233242880861
BaseRepresentation
bin1011100000000110…
…0101001000101000
321222011112021202200
42320001211020220
522310340000432
61230210100200
7136336440204
oct27001451050
97864467680
103087421992
111344850926
12721b7a660
133a2842c25
14214081b04
151310b1a7c
hexb8065228

3087421992 has 24 divisors (see below), whose sum is σ = 8361768090. Its totient is φ = 1029140640.

The previous prime is 3087421933. The next prime is 3087421993. The reversal of 3087421992 is 2991247803.

It can be written as a sum of positive squares in only one way, i.e., 2345077476 + 742344516 = 48426^2 + 27246^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (3087421993) 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 5 ways as a sum of consecutive naturals, for example, 21440359 + ... + 21440502.

Almost surely, 23087421992 is an apocalyptic number.

It is an amenable number.

3087421992 is an abundant number, since it is smaller than the sum of its proper divisors (5274346098).

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

3087421992 is a wasteful number, since it uses less digits than its factorization.

3087421992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42880873 (or 42880866 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3087421992 is about 55564.5749736287. The cubic root of 3087421992 is about 1456.1250207122.

The spelling of 3087421992 in words is "three billion, eighty-seven million, four hundred twenty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 42880861 85761722 128642583 171523444 257285166 343046888 385927749 514570332 771855498 1029140664 1543710996 3087421992