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427887347 = 8947910037
BaseRepresentation
bin11001100000010…
…000101011110011
31002211010221002112
4121200100223303
51334014343342
6110243035535
713413660656
oct3140205363
91084127075
10427887347
111aa593108
12bb36bbab
136a856aa4
1440b8389d
1527871682
hex19810af3

427887347 has 8 divisors (see below), whose sum is σ = 433641600. Its totient is φ = 422154304.

The previous prime is 427887337. The next prime is 427887379. The reversal of 427887347 is 743788724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 427887347 - 26 = 427887283 is a prime.

It is a super-3 number, since 3×4278873473 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427887295 and 427887304.

It is not an unprimeable number, because it can be changed into a prime (427887307) 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 7 ways as a sum of consecutive naturals, for example, 37613 + ... + 47649.

It is an arithmetic number, because the mean of its divisors is an integer number (54205200).

Almost surely, 2427887347 is an apocalyptic number.

427887347 is a deficient number, since it is larger than the sum of its proper divisors (5754253).

427887347 is a wasteful number, since it uses less digits than its factorization.

427887347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605.

The product of its digits is 2107392, while the sum is 50.

The square root of 427887347 is about 20685.4380422557. The cubic root of 427887347 is about 753.5460796311.

The spelling of 427887347 in words is "four hundred twenty-seven million, eight hundred eighty-seven thousand, three hundred forty-seven".

Divisors: 1 89 479 10037 42631 893293 4807723 427887347