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2782380480 = 2635112171409
BaseRepresentation
bin1010010111010111…
…1100000111000000
321011220112120110220
42211311330013000
521144242133410
61140032023040
7125643562305
oct24565740700
97156476426
102782380480
1111a8643700
12657991a80
1335459b4a9
141c57590ac
15114409070
hexa5d7c1c0

2782380480 has 336 divisors, whose sum is σ = 10288645920. Its totient is φ = 634388480.

The previous prime is 2782380413. The next prime is 2782380527. The reversal of 2782380480 is 840832872.

It is a super-2 number, since 2×27823804802 = 15483282270970060800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1974016 + ... + 1975424.

It is an arithmetic number, because the mean of its divisors is an integer number (30620970).

Almost surely, 22782380480 is an apocalyptic number.

2782380480 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 2782380480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5144322960).

2782380480 is an abundant number, since it is smaller than the sum of its proper divisors (7506265440).

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

2782380480 is a wasteful number, since it uses less digits than its factorization.

2782380480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 2782380480 is about 52748.2746637272. The cubic root of 2782380480 is about 1406.4970942789.

The spelling of 2782380480 in words is "two billion, seven hundred eighty-two million, three hundred eighty thousand, four hundred eighty".