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28261062039 = 3761183112049
BaseRepresentation
bin11010010100011111…
…011001010110010111
32200221120011200221110
4122110133121112113
5430334312441124
620552152350103
72020223030610
oct322437312627
980846150843
1028261062039
1110a926a6221
1255886a5333
132885034522
141521508c07
15b06133029
hex6947d9597

28261062039 has 32 divisors (see below), whose sum is σ = 43797990400. Its totient is φ = 15874444800.

The previous prime is 28261062031. The next prime is 28261062059. The reversal of 28261062039 is 93026016282.

It is a happy number.

It is not a de Polignac number, because 28261062039 - 23 = 28261062031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28261061988 and 28261062006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28261062031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2339487 + ... + 2351535.

It is an arithmetic number, because the mean of its divisors is an integer number (1368687200).

Almost surely, 228261062039 is an apocalyptic number.

28261062039 is a deficient number, since it is larger than the sum of its proper divisors (15536928361).

28261062039 is a wasteful number, since it uses less digits than its factorization.

28261062039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13951.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 28261062039 in words is "twenty-eight billion, two hundred sixty-one million, sixty-two thousand, thirty-nine".

Divisors: 1 3 7 21 61 183 427 1281 1831 5493 12049 12817 36147 38451 84343 111691 253029 335073 734989 781837 2204967 2345511 5144923 15434769 22061719 66185157 154432033 463296099 1345764859 4037294577 9420354013 28261062039