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28649192282 = 287716333633
BaseRepresentation
bin11010101011100111…
…111111101101011010
32201221121111202112122
4122223213333231122
5432133143123112
621054455341242
72032645054634
oct325347775532
981847452478
1028649192282
11111717a4217
125676681822
13291757b1a9
14155ac9da54
15b2a24e872
hex6ab9ffb5a

28649192282 has 8 divisors (see below), whose sum is σ = 43022791956. Its totient is φ = 14308261632.

The previous prime is 28649192279. The next prime is 28649192291. The reversal of 28649192282 is 28229194682.

It can be written as a sum of positive squares in 2 ways, for example, as 26552376601 + 2096815681 = 162949^2 + 45791^2 .

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

It is a super-2 number, since 2×286491922822 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8165063 + ... + 8168570.

Almost surely, 228649192282 is an apocalyptic number.

28649192282 is a deficient number, since it is larger than the sum of its proper divisors (14373599674).

28649192282 is a wasteful number, since it uses less digits than its factorization.

28649192282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16334512.

The product of its digits is 1990656, while the sum is 53.

The spelling of 28649192282 in words is "twenty-eight billion, six hundred forty-nine million, one hundred ninety-two thousand, two hundred eighty-two".

Divisors: 1 2 877 1754 16333633 32667266 14324596141 28649192282