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486679869 = 321317212417
BaseRepresentation
bin11101000000100…
…010010100111101
31020220202220021100
4131000202110331
51444042223434
6120143123313
715026465514
oct3500422475
91226686240
10486679869
1122a799875
12116ba3539
1379aa0270
14488c967b
152cad6699
hex1d02253d

486679869 has 24 divisors (see below), whose sum is σ = 757810872. Its totient is φ = 299197440.

The previous prime is 486679861. The next prime is 486679871. The reversal of 486679869 is 968976684.

486679869 is a `hidden beast` number, since 486 + 6 + 7 + 98 + 69 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 170302500 + 316377369 = 13050^2 + 17787^2 .

It is not a de Polignac number, because 486679869 - 23 = 486679861 is a prime.

It is a super-2 number, since 2×4866798692 = 473714589779714322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486679861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200149 + ... + 202565.

It is an arithmetic number, because the mean of its divisors is an integer number (31575453).

Almost surely, 2486679869 is an apocalyptic number.

It is an amenable number.

486679869 is a deficient number, since it is larger than the sum of its proper divisors (271131003).

486679869 is a wasteful number, since it uses less digits than its factorization.

486679869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4154 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 486679869 is about 22060.8220381744. The cubic root of 486679869 is about 786.5888648957.

The spelling of 486679869 in words is "four hundred eighty-six million, six hundred seventy-nine thousand, eight hundred sixty-nine".

Divisors: 1 3 9 13 39 117 1721 2417 5163 7251 15489 21753 22373 31421 67119 94263 201357 282789 4159657 12478971 37436913 54075541 162226623 486679869