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7028439768 = 2333729792029
BaseRepresentation
bin1101000101110110…
…10111101011011000
3200010211020201211000
412202323113223120
5103343240033033
63121231505000
7336112516020
oct64273275330
920124221730
107028439768
112a87409909
121441988160
138801829cc
144a9640a80
152b2085a13
hex1a2ed7ad8

7028439768 has 256 divisors, whose sum is σ = 23385600000. Its totient is φ = 1913393664.

The previous prime is 7028439749. The next prime is 7028439799. The reversal of 7028439768 is 8679348207.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3462978 + ... + 3465006.

It is an arithmetic number, because the mean of its divisors is an integer number (91350000).

Almost surely, 27028439768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7028439768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11692800000).

7028439768 is an abundant number, since it is smaller than the sum of its proper divisors (16357160232).

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

7028439768 is a wasteful number, since it uses less digits than its factorization.

7028439768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 7028439768 is about 83835.7904954680. The cubic root of 7028439768 is about 1915.5183164796.

It can be divided in two parts, 7028439 and 768, that added together give a palindrome (7029207).

The spelling of 7028439768 in words is "seven billion, twenty-eight million, four hundred thirty-nine thousand, seven hundred sixty-eight".