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282287428 = 2270571857
BaseRepresentation
bin10000110100110…
…101110101000100
3201200011200112221
4100310311311010
51034231144203
644002222124
76665255263
oct2064656504
9650150487
10282287428
111353867a5
127a654944
13466388a7
14296c25da
1519bb0abd
hex10d35d44

282287428 has 6 divisors (see below), whose sum is σ = 494003006. Its totient is φ = 141143712.

The previous prime is 282287359. The next prime is 282287429. The reversal of 282287428 is 824782282.

282287428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 275825664 + 6461764 = 16608^2 + 2542^2 .

It is not an unprimeable number, because it can be changed into a prime (282287429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35285925 + ... + 35285932.

Almost surely, 2282287428 is an apocalyptic number.

It is an amenable number.

282287428 is a deficient number, since it is larger than the sum of its proper divisors (211715578).

282287428 is a wasteful number, since it uses less digits than its factorization.

282287428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70571861 (or 70571859 counting only the distinct ones).

The product of its digits is 229376, while the sum is 43.

The square root of 282287428 is about 16801.4114883244. The cubic root of 282287428 is about 655.9899394898.

The spelling of 282287428 in words is "two hundred eighty-two million, two hundred eighty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 70571857 141143714 282287428