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487447428 = 2231329107747
BaseRepresentation
bin11101000011011…
…101101110000100
31020222012220011110
4131003131232010
51444241304203
6120211405020
715036143346
oct3503355604
91228186143
10487447428
11230173516
121172b3770
1379cab740
1448a49296
152cbd8d03
hex1d0ddb84

487447428 has 48 divisors (see below), whose sum is σ = 1267116480. Its totient is φ = 144810624.

The previous prime is 487447403. The next prime is 487447517. The reversal of 487447428 is 824744784.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49350 + ... + 58397.

It is an arithmetic number, because the mean of its divisors is an integer number (26398260).

Almost surely, 2487447428 is an apocalyptic number.

It is an amenable number.

487447428 is an abundant number, since it is smaller than the sum of its proper divisors (779669052).

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

487447428 is a wasteful number, since it uses less digits than its factorization.

487447428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107796 (or 107794 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 48.

The square root of 487447428 is about 22078.2116123566. The cubic root of 487447428 is about 787.0021661771.

The spelling of 487447428 in words is "four hundred eighty-seven million, four hundred forty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 58 78 87 116 156 174 348 377 754 1131 1508 2262 4524 107747 215494 323241 430988 646482 1292964 1400711 2801422 3124663 4202133 5602844 6249326 8404266 9373989 12498652 16808532 18747978 37495956 40620619 81241238 121861857 162482476 243723714 487447428