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2851130880 = 293351319167
BaseRepresentation
bin1010100111110000…
…1100111000000000
321100200220110022000
42221330030320000
521314342142010
61150525344000
7130440132633
oct25174147000
97320813260
102851130880
111233430914
12676a08000
133658c02c0
141d0933c1a
1511a4897c0
hexa9f0ce00

2851130880 has 640 divisors, whose sum is σ = 11549260800. Its totient is φ = 660897792.

The previous prime is 2851130869. The next prime is 2851130929. The reversal of 2851130880 is 880311582.

It is a tau number, because it is divible by the number of its divisors (640).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17072557 + ... + 17072723.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 22851130880 is an apocalyptic number.

2851130880 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 2851130880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5774630400).

2851130880 is an abundant number, since it is smaller than the sum of its proper divisors (8698129920).

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

2851130880 is a wasteful number, since it uses less digits than its factorization.

2851130880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 2851130880 is about 53395.9818712981. The cubic root of 2851130880 is about 1417.9874418914.

The spelling of 2851130880 in words is "two billion, eight hundred fifty-one million, one hundred thirty thousand, eight hundred eighty".