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282884225 = 5213870413
BaseRepresentation
bin10000110111000…
…111100010000001
3201201022000012112
4100313013202001
51034404243400
644023105105
710003322231
oct2067074201
9651260175
10282884225
11135754118
127a8a2195
13467b7420
14297d9cc1
1519c7c835
hex10dc7881

282884225 has 12 divisors (see below), whose sum is σ = 377759676. Its totient is φ = 208898880.

The previous prime is 282884221. The next prime is 282884263. The reversal of 282884225 is 522488282.

It can be written as a sum of positive squares in 6 ways, for example, as 13366336 + 269517889 = 3656^2 + 16417^2 .

It is not a de Polignac number, because 282884225 - 22 = 282884221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282884221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434882 + ... + 435531.

It is an arithmetic number, because the mean of its divisors is an integer number (31479973).

Almost surely, 2282884225 is an apocalyptic number.

282884225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

282884225 is a deficient number, since it is larger than the sum of its proper divisors (94875451).

282884225 is a wasteful number, since it uses less digits than its factorization.

282884225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870436 (or 870431 counting only the distinct ones).

The product of its digits is 163840, while the sum is 41.

The square root of 282884225 is about 16819.1624345566. The cubic root of 282884225 is about 656.4519003869.

The spelling of 282884225 in words is "two hundred eighty-two million, eight hundred eighty-four thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 870413 4352065 11315369 21760325 56576845 282884225