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2991682080 = 253351734003
BaseRepresentation
bin1011001001010001…
…0111001000100000
321201111101012022000
42302110113020200
522111332311310
61212510044000
7134064610122
oct26224271040
97644335260
102991682080
1112a57aa032
126b5aa9600
13388a614aa
1420547d212
1512799e4c0
hexb2517220

2991682080 has 192 divisors, whose sum is σ = 10534043520. Its totient is φ = 792972288.

The previous prime is 2991682033. The next prime is 2991682081. The reversal of 2991682080 is 802861992.

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

It is not an unprimeable number, because it can be changed into a prime (2991682081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745359 + ... + 749361.

It is an arithmetic number, because the mean of its divisors is an integer number (54864810).

Almost surely, 22991682080 is an apocalyptic number.

2991682080 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 2991682080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5267021760).

2991682080 is an abundant number, since it is smaller than the sum of its proper divisors (7542361440).

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

2991682080 is a wasteful number, since it uses less digits than its factorization.

2991682080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 2991682080 is about 54696.2711708943. The cubic root of 2991682080 is about 1440.9153901967.

The spelling of 2991682080 in words is "two billion, nine hundred ninety-one million, six hundred eighty-two thousand, eighty".