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28213260118 = 2130710793137
BaseRepresentation
bin11010010001101001…
…000010111101010110
32200211020020010000221
4122101221002331112
5430240043310433
620543324024554
72016102516451
oct322151027526
980736203027
1028213260118
1110a687169aa
12557469215a
132878168774
141519024498
15b01d3e72d
hex691a42f56

28213260118 has 8 divisors (see below), whose sum is σ = 42352273512. Its totient is φ = 14095835616.

The previous prime is 28213260079. The next prime is 28213260133. The reversal of 28213260118 is 81106231282.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5393955 + ... + 5399182.

It is an arithmetic number, because the mean of its divisors is an integer number (5294034189).

Almost surely, 228213260118 is an apocalyptic number.

28213260118 is a deficient number, since it is larger than the sum of its proper divisors (14139013394).

28213260118 is a wasteful number, since it uses less digits than its factorization.

28213260118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794446.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 28213260118 in words is "twenty-eight billion, two hundred thirteen million, two hundred sixty thousand, one hundred eighteen".

Divisors: 1 2 1307 2614 10793137 21586274 14106630059 28213260118