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28083611670 = 235936120389
BaseRepresentation
bin11010001001111010…
…011110100000010110
32200111012021021210120
4122021322132200112
5430003401033140
620522413132410
72012636521602
oct321172364026
980435237716
1028083611670
1110a01515124
12553918a106
132857343cca
141505b16502
15ae57801d0
hex689e9e816

28083611670 has 16 divisors (see below), whose sum is σ = 67400668080. Its totient is φ = 7488963104.

The previous prime is 28083611659. The next prime is 28083611693. The reversal of 28083611670 is 7611638082.

It is a super-3 number, since 3×280836116703 (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 468060165 + ... + 468060224.

It is an arithmetic number, because the mean of its divisors is an integer number (4212541755).

Almost surely, 228083611670 is an apocalyptic number.

28083611670 is an abundant number, since it is smaller than the sum of its proper divisors (39317056410).

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

28083611670 is a wasteful number, since it uses less digits than its factorization.

28083611670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936120399.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 28083611670 in words is "twenty-eight billion, eighty-three million, six hundred eleven thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 936120389 1872240778 2808361167 4680601945 5616722334 9361203890 14041805835 28083611670