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7028306390 = 257100404377
BaseRepresentation
bin1101000101110101…
…10111000111010110
3200010210222221212002
412202322313013112
5103343221301030
63121224555302
7336111422120
oct64272670726
920123887762
107028306390
112a87328686
121441922b32
138801370a1
144a9608210
152b205b245
hex1a2eb71d6

7028306390 has 16 divisors (see below), whose sum is σ = 14458230432. Its totient is φ = 2409705024.

The previous prime is 7028306333. The next prime is 7028306393. The reversal of 7028306390 is 936038207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028306393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50202119 + ... + 50202258.

It is an arithmetic number, because the mean of its divisors is an integer number (903639402).

Almost surely, 27028306390 is an apocalyptic number.

7028306390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7028306390 is an abundant number, since it is smaller than the sum of its proper divisors (7429924042).

7028306390 is a wasteful number, since it uses less digits than its factorization.

7028306390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100404391.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 7028306390 is about 83834.9950199796. The cubic root of 7028306390 is about 1915.5061995363.

The spelling of 7028306390 in words is "seven billion, twenty-eight million, three hundred six thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 100404377 200808754 502021885 702830639 1004043770 1405661278 3514153195 7028306390