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487633686 = 2381272281
BaseRepresentation
bin11101000100001…
…011001100010110
31020222120100122220
4131010023030112
51444313234221
6120215403210
715040550361
oct3504131426
91228510586
10487633686
11230290451
12117383506
137a045457
1448a970d8
152cc240c6
hex1d10b316

487633686 has 8 divisors (see below), whose sum is σ = 975267384. Its totient is φ = 162544560.

The previous prime is 487633681. The next prime is 487633711. The reversal of 487633686 is 686336784.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

487633686 is an admirable number.

It is a super-2 number, since 2×4876336862 = 475573223443893192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487633681) 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 3 ways as a sum of consecutive naturals, for example, 40636135 + ... + 40636146.

It is an arithmetic number, because the mean of its divisors is an integer number (121908423).

Almost surely, 2487633686 is an apocalyptic number.

487633686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

487633686 is a wasteful number, since it uses less digits than its factorization.

487633686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81272286.

The product of its digits is 3483648, while the sum is 51.

The square root of 487633686 is about 22082.4293500511. The cubic root of 487633686 is about 787.1023935894.

The spelling of 487633686 in words is "four hundred eighty-seven million, six hundred thirty-three thousand, six hundred eighty-six".

Divisors: 1 2 3 6 81272281 162544562 243816843 487633686