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428580430 = 25260916427
BaseRepresentation
bin11001100010111…
…001111001001110
31002212110010211021
4121202321321032
51334204033210
6110305544354
713422605425
oct3142717116
91085403737
10428580430
111aaa16903
12bb6450ba
136aa3a3b5
1440cc42bc
152795bbda
hex198b9e4e

428580430 has 16 divisors (see below), whose sum is σ = 771787440. Its totient is φ = 171356032.

The previous prime is 428580409. The next prime is 428580437. The reversal of 428580430 is 34085824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428580437) 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, 17877 + ... + 34303.

It is an arithmetic number, because the mean of its divisors is an integer number (48236715).

Almost surely, 2428580430 is an apocalyptic number.

428580430 is a deficient number, since it is larger than the sum of its proper divisors (343207010).

428580430 is a wasteful number, since it uses less digits than its factorization.

428580430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 428580430 is about 20702.1841842836. The cubic root of 428580430 is about 753.9527195620.

The spelling of 428580430 in words is "four hundred twenty-eight million, five hundred eighty thousand, four hundred thirty".

Divisors: 1 2 5 10 2609 5218 13045 16427 26090 32854 82135 164270 42858043 85716086 214290215 428580430