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28113335060 = 2251405666753
BaseRepresentation
bin11010001011101011…
…110111001100010100
32200120021012101121212
4122023223313030110
5430034003210220
620525354200552
72013450255656
oct321353671424
980507171555
1028113335060
1110a17276808
125547123158
132860550105
141509a526d6
15ae81a20c5
hex68baf7314

28113335060 has 12 divisors (see below), whose sum is σ = 59038003668. Its totient is φ = 11245334016.

The previous prime is 28113335053. The next prime is 28113335083. The reversal of 28113335060 is 6053331182.

It can be written as a sum of positive squares in 2 ways, for example, as 4104452356 + 24008882704 = 64066^2 + 154948^2 .

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 3 ways as a sum of consecutive naturals, for example, 702833357 + ... + 702833396.

It is an arithmetic number, because the mean of its divisors is an integer number (4919833639).

Almost surely, 228113335060 is an apocalyptic number.

28113335060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28113335060 is an abundant number, since it is smaller than the sum of its proper divisors (30924668608).

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

28113335060 is a wasteful number, since it uses less digits than its factorization.

28113335060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405666762 (or 1405666760 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 28113335060 in words is "twenty-eight billion, one hundred thirteen million, three hundred thirty-five thousand, sixty".

Divisors: 1 2 4 5 10 20 1405666753 2811333506 5622667012 7028333765 14056667530 28113335060