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487897685 = 51131674271
BaseRepresentation
bin11101000101001…
…011101001010101
31021000001202210122
4131011023221111
51444400211220
6120225201325
715043030142
oct3505135125
91230052718
10487897685
11230450830
12117490245
137a108672
1448b253c9
152cc77425
hex1d14ba55

487897685 has 32 divisors (see below), whose sum is σ = 669302784. Its totient is φ = 338184000.

The previous prime is 487897673. The next prime is 487897693. The reversal of 487897685 is 586798784.

It is not a de Polignac number, because 487897685 - 220 = 486849109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112100 + ... + 116370.

It is an arithmetic number, because the mean of its divisors is an integer number (20915712).

Almost surely, 2487897685 is an apocalyptic number.

It is an amenable number.

487897685 is a deficient number, since it is larger than the sum of its proper divisors (181405099).

487897685 is a wasteful number, since it uses less digits than its factorization.

487897685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385.

The product of its digits is 27095040, while the sum is 62.

The square root of 487897685 is about 22088.4061217644. The cubic root of 487897685 is about 787.2444105466.

The spelling of 487897685 in words is "four hundred eighty-seven million, eight hundred ninety-seven thousand, six hundred eighty-five".

Divisors: 1 5 11 31 55 67 155 335 341 737 1705 2077 3685 4271 10385 21355 22847 46981 114235 132401 234905 286157 662005 1430785 1456411 3147727 7282055 8870867 15738635 44354335 97579537 487897685