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2885480640 = 263257323127
BaseRepresentation
bin1010101111111100…
…1111000011000000
321110002112121022100
42223333033003000
521402140340030
61154153510400
7131335116000
oct25377170300
97402477270
102885480640
111250862349
12686412400
1336ca590c3
141d5316000
1511d4c2360
hexabfcf0c0

2885480640 has 672 divisors, whose sum is σ = 12172492800. Its totient is φ = 625895424.

The previous prime is 2885480639. The next prime is 2885480671. The reversal of 2885480640 is 460845882.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 22720257 + ... + 22720383.

Almost surely, 22885480640 is an apocalyptic number.

2885480640 is a gapful number since it is divisible by the number (20) 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 2885480640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6086246400).

2885480640 is an abundant number, since it is smaller than the sum of its proper divisors (9287012160).

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

2885480640 is a wasteful number, since it uses less digits than its factorization.

2885480640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 2885480640 is about 53716.6700382665. The cubic root of 2885480640 is about 1423.6592523076.

The spelling of 2885480640 in words is "two billion, eight hundred eighty-five million, four hundred eighty thousand, six hundred forty".