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284425480 = 2357110637
BaseRepresentation
bin10000111100111…
…111110100001000
3201211012022102001
4100330333310020
51040303103410
644120120344
710022401543
oct2074776410
9654168361
10284425480
11136607089
127b3060b4
1346c06b01
1429abb85a
1519e8433a
hex10f3fd08

284425480 has 16 divisors (see below), whose sum is σ = 639957420. Its totient is φ = 113770176.

The previous prime is 284425441. The next prime is 284425481. The reversal of 284425480 is 84524482.

284425480 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 2 ways, for example, as 251729956 + 32695524 = 15866^2 + 5718^2 .

It is not an unprimeable number, because it can be changed into a prime (284425481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3555279 + ... + 3555358.

Almost surely, 2284425480 is an apocalyptic number.

284425480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284425480 is an abundant number, since it is smaller than the sum of its proper divisors (355531940).

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

284425480 is a wasteful number, since it uses less digits than its factorization.

284425480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110648 (or 7110644 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 284425480 is about 16864.9186182442. The cubic root of 284425480 is about 657.6419370981.

The spelling of 284425480 in words is "two hundred eighty-four million, four hundred twenty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 7110637 14221274 28442548 35553185 56885096 71106370 142212740 284425480