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428126214 = 231732771489
BaseRepresentation
bin11001100001001…
…011000000000110
31002211121001202110
4121201023000012
51334100014324
6110252121450
713416004245
oct3141130006
91084531673
10428126214
111aa73661a
12bb466286
136a90b729
1440c0695c
15278bc329
hex1984b006

428126214 has 32 divisors (see below), whose sum is σ = 864891360. Its totient is φ = 141276672.

The previous prime is 428126207. The next prime is 428126219. The reversal of 428126214 is 412621824.

It is a super-2 number, since 2×4281262142 = 366584110227947592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428126219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286782 + ... + 288270.

It is an arithmetic number, because the mean of its divisors is an integer number (27027855).

Almost surely, 2428126214 is an apocalyptic number.

428126214 is an abundant number, since it is smaller than the sum of its proper divisors (436765146).

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

428126214 is a wasteful number, since it uses less digits than its factorization.

428126214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its digits is 6144, while the sum is 30.

The square root of 428126214 is about 20691.2110327066. The cubic root of 428126214 is about 753.6862752603.

The spelling of 428126214 in words is "four hundred twenty-eight million, one hundred twenty-six thousand, two hundred fourteen".

Divisors: 1 2 3 6 173 277 346 519 554 831 1038 1489 1662 2978 4467 8934 47921 95842 143763 257597 287526 412453 515194 772791 824906 1237359 1545582 2474718 71354369 142708738 214063107 428126214