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428805412 = 22717388523
BaseRepresentation
bin11001100011110…
…000110100100100
31002212212120102221
4121203300310210
51334233233122
6110314442124
713424533360
oct3143606444
91085776387
10428805412
1120005a942
12bb733344
136aab8919
1440d422a0
15279a36c7
hex198f0d24

428805412 has 24 divisors (see below), whose sum is σ = 862577856. Its totient is φ = 182709408.

The previous prime is 428805407. The next prime is 428805551. The reversal of 428805412 is 214508824.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39418 + ... + 49105.

It is an arithmetic number, because the mean of its divisors is an integer number (35940744).

Almost surely, 2428805412 is an apocalyptic number.

It is an amenable number.

428805412 is an abundant number, since it is smaller than the sum of its proper divisors (433772444).

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

428805412 is a wasteful number, since it uses less digits than its factorization.

428805412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88707 (or 88705 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 428805412 is about 20707.6172458349. The cubic root of 428805412 is about 754.0846248832.

The spelling of 428805412 in words is "four hundred twenty-eight million, eight hundred five thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 173 346 692 1211 2422 4844 88523 177046 354092 619661 1239322 2478644 15314479 30628958 61257916 107201353 214402706 428805412