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28184213382 = 2313361336069
BaseRepresentation
bin11010001111111010…
…001111011110000110
32200202012120101101220
4122033322033132012
5430210124312012
620540405301210
72015300601213
oct321772173606
980665511356
1028184213382
1110a53287736
125566a04806
132872138650
141515222b0a
15aee50308c
hex68fe8f786

28184213382 has 16 divisors (see below), whose sum is σ = 60704459760. Its totient is φ = 8672065632.

The previous prime is 28184213371. The next prime is 28184213413. The reversal of 28184213382 is 28331248182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180667957 + ... + 180668112.

It is an arithmetic number, because the mean of its divisors is an integer number (3794028735).

Almost surely, 228184213382 is an apocalyptic number.

28184213382 is an abundant number, since it is smaller than the sum of its proper divisors (32520246378).

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

28184213382 is a wasteful number, since it uses less digits than its factorization.

28184213382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361336087.

The product of its digits is 147456, while the sum is 42.

The spelling of 28184213382 in words is "twenty-eight billion, one hundred eighty-four million, two hundred thirteen thousand, three hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 78 361336069 722672138 1084008207 2168016414 4697368897 9394737794 14092106691 28184213382