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428290876 = 221313162873
BaseRepresentation
bin11001100001110…
…011001100111100
31002211220102122001
4121201303030330
51334120302001
6110255432044
713420261306
oct3141631474
91084812561
10428290876
111aa839302
12bb525624
136a968670
1440c4a976
1527901001
hex1987333c

428290876 has 24 divisors (see below), whose sum is σ = 813338064. Its totient is φ = 196160640.

The previous prime is 428290871. The next prime is 428290883. The reversal of 428290876 is 678092824.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428290871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24625 + ... + 38248.

It is an arithmetic number, because the mean of its divisors is an integer number (33889086).

Almost surely, 2428290876 is an apocalyptic number.

It is an amenable number.

428290876 is a deficient number, since it is larger than the sum of its proper divisors (385047188).

428290876 is a wasteful number, since it uses less digits than its factorization.

428290876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63021 (or 63019 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 428290876 is about 20695.1896826291. The cubic root of 428290876 is about 753.7828881891.

The spelling of 428290876 in words is "four hundred twenty-eight million, two hundred ninety thousand, eight hundred seventy-six".

Divisors: 1 2 4 13 26 52 131 262 524 1703 3406 6812 62873 125746 251492 817349 1634698 3269396 8236363 16472726 32945452 107072719 214145438 428290876