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28489793353 = 746374311831
BaseRepresentation
bin11010100010000111…
…111011111101001001
32201112111120110022121
4122202013323331021
5431321341341403
621031003051241
72026001151010
oct324207737511
981474513277
1028489793353
111109a82246a
125631210b21
1328c053b1b8
141543a49a77
15b1b2653bd
hex6a21fbf49

28489793353 has 16 divisors (see below), whose sum is σ = 32676765696. Its totient is φ = 24332227920.

The previous prime is 28489793323. The next prime is 28489793393. The reversal of 28489793353 is 35339798482.

It is not a de Polignac number, because 28489793353 - 29 = 28489792841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28489793291 and 28489793300.

It is not an unprimeable number, because it can be changed into a prime (28489793323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402148 + ... + 2413978.

It is an arithmetic number, because the mean of its divisors is an integer number (2042297856).

Almost surely, 228489793353 is an apocalyptic number.

It is an amenable number.

28489793353 is a deficient number, since it is larger than the sum of its proper divisors (4186972343).

28489793353 is a wasteful number, since it uses less digits than its factorization.

28489793353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13044.

The product of its digits is 39191040, while the sum is 61.

The spelling of 28489793353 in words is "twenty-eight billion, four hundred eighty-nine million, seven hundred ninety-three thousand, three hundred fifty-three".

Divisors: 1 7 463 743 3241 5201 11831 82817 344009 2408063 5477753 8790433 38344271 61533031 4069970479 28489793353