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72828405039 = 3132381191087
BaseRepresentation
bin100001111010011101…
…0010100010100101111
320221222112111022011210
41003310322110110233
52143123032430124
653242405245503
75155520141325
oct1036472242457
9227875438153
1072828405039
11289828106a5
1212146103893
136b3840b8c0
14374c511d15
151d63aaba29
hex10f4e9452f

72828405039 has 16 divisors (see below), whose sum is σ = 109120822272. Its totient is φ = 42868893408.

The previous prime is 72828405011. The next prime is 72828405049. The reversal of 72828405039 is 93050482827.

It is not a de Polignac number, because 72828405039 - 211 = 72828402991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72828405049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40594647 + ... + 40596440.

It is an arithmetic number, because the mean of its divisors is an integer number (6820051392).

Almost surely, 272828405039 is an apocalyptic number.

72828405039 is a deficient number, since it is larger than the sum of its proper divisors (36292417233).

72828405039 is a wasteful number, since it uses less digits than its factorization.

72828405039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81191126.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 72828405039 in words is "seventy-two billion, eight hundred twenty-eight million, four hundred five thousand, thirty-nine".

Divisors: 1 3 13 23 39 69 299 897 81191087 243573261 1055484131 1867395001 3166452393 5602185003 24276135013 72828405039