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2806345080 = 23325711293491
BaseRepresentation
bin1010011101000101…
…0110110101111000
321020120122002201200
42213101112311320
521221411020310
61142245414200
7126354353040
oct24721266570
97216562650
102806345080
111210121660
12663a0a360
1335953c326
141c89d6720
1511658e9c0
hexa7456d78

2806345080 has 384 divisors, whose sum is σ = 11766643200. Its totient is φ = 562867200.

The previous prime is 2806345079. The next prime is 2806345093. The reversal of 2806345080 is 805436082.

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 (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 802135 + ... + 805625.

It is an arithmetic number, because the mean of its divisors is an integer number (30642300).

Almost surely, 22806345080 is an apocalyptic number.

2806345080 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 2806345080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5883321600).

2806345080 is an abundant number, since it is smaller than the sum of its proper divisors (8960298120).

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

2806345080 is a wasteful number, since it uses less digits than its factorization.

2806345080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 2806345080 is about 52974.9476639666. The cubic root of 2806345080 is about 1410.5236021265.

The spelling of 2806345080 in words is "two billion, eight hundred six million, three hundred forty-five thousand, eighty".