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2889490284 = 223219293137127
BaseRepresentation
bin1010110000111010…
…0001111101101100
321110101002022111200
42230032201331230
521404202142114
61154415445500
7131414155632
oct25416417554
97411068450
102889490284
1112530508aa
12687826890
13370831185
141d5a7b352
1511da15409
hexac3a1f6c

2889490284 has 288 divisors, whose sum is σ = 8498380800. Its totient is φ = 823011840.

The previous prime is 2889490267. The next prime is 2889490309. The reversal of 2889490284 is 4820949882.

It is a self number, because there is not a number n which added to its sum of digits gives 2889490284.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22751829 + ... + 22751955.

Almost surely, 22889490284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2889490284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4249190400).

2889490284 is an abundant number, since it is smaller than the sum of its proper divisors (5608890516).

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

2889490284 is a wasteful number, since it uses less digits than its factorization.

2889490284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 2889490284 is about 53753.9792387503. The cubic root of 2889490284 is about 1424.3183827874.

The spelling of 2889490284 in words is "two billion, eight hundred eighty-nine million, four hundred ninety thousand, two hundred eighty-four".