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422148880 = 2455276861
BaseRepresentation
bin11001001010010…
…111101100010000
31002102100101101201
4121022113230100
51331032231010
6105520040544
713314130516
oct3112275420
91072311351
10422148880
111a732377a
12b9463154
13695c7b4a
14400cc4b6
15270db23a
hex19297b10

422148880 has 20 divisors (see below), whose sum is σ = 981496332. Its totient is φ = 168859520.

The previous prime is 422148871. The next prime is 422148887. The reversal of 422148880 is 88841224.

It can be written as a sum of positive squares in 2 ways, for example, as 309619216 + 112529664 = 17596^2 + 10608^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (422148887) 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 in 3 ways as a sum of consecutive naturals, for example, 2638351 + ... + 2638510.

Almost surely, 2422148880 is an apocalyptic number.

422148880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422148880 is an abundant number, since it is smaller than the sum of its proper divisors (559347452).

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

422148880 is a wasteful number, since it uses less digits than its factorization.

422148880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276874 (or 5276868 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 37.

The square root of 422148880 is about 20546.2619471280. The cubic root of 422148880 is about 750.1622641505.

The spelling of 422148880 in words is "four hundred twenty-two million, one hundred forty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 5276861 10553722 21107444 26384305 42214888 52768610 84429776 105537220 211074440 422148880