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282007540 = 22514100377
BaseRepresentation
bin10000110011110…
…001011111110100
3201122122110121201
4100303301133310
51034143220130
643552222244
76663011263
oct2063613764
9648573551
10282007540
11135205491
127a53a984
134656b389
142964c5da
1519b57bca
hex10cf17f4

282007540 has 12 divisors (see below), whose sum is σ = 592215876. Its totient is φ = 112803008.

The previous prime is 282007501. The next prime is 282007559. The reversal of 282007540 is 45700282.

It can be written as a sum of positive squares in 2 ways, for example, as 49871844 + 232135696 = 7062^2 + 15236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 282007499 and 282007508.

It is a congruent number.

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, 7050169 + ... + 7050208.

It is an arithmetic number, because the mean of its divisors is an integer number (49351323).

Almost surely, 2282007540 is an apocalyptic number.

282007540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282007540 is an abundant number, since it is smaller than the sum of its proper divisors (310208336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

282007540 is a wasteful number, since it uses less digits than its factorization.

282007540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14100386 (or 14100384 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 282007540 is about 16793.0801224790. The cubic root of 282007540 is about 655.7730631096.

The spelling of 282007540 in words is "two hundred eighty-two million, seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 14100377 28200754 56401508 70501885 141003770 282007540