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2489131008 = 21332721353
BaseRepresentation
bin1001010001011101…
…0010000000000000
320102110201221211100
42110113102000000
520044204143013
61050554414400
7115453156500
oct22427220000
96373657740
102489131008
11106805aa71
12595731400
133088c51b0
14198821a00
15e87d0473
hex945d2000

2489131008 has 504 divisors, whose sum is σ = 9177691068. Its totient is φ = 644087808.

The previous prime is 2489130991. The next prime is 2489131037. The reversal of 2489131008 is 8001319842.

It can be written as a sum of positive squares in 2 ways, for example, as 2472873984 + 16257024 = 49728^2 + 4032^2 .

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46964710 + ... + 46964762.

Almost surely, 22489131008 is an apocalyptic number.

2489131008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2489131008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4588845534).

2489131008 is an abundant number, since it is smaller than the sum of its proper divisors (6688560060).

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

2489131008 is a wasteful number, since it uses less digits than its factorization.

2489131008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 2489131008 is about 49891.1916875113. The cubic root of 2489131008 is about 1355.2390854561.

The spelling of 2489131008 in words is "two billion, four hundred eighty-nine million, one hundred thirty-one thousand, eight".