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3281971 = 72116089
BaseRepresentation
bin1100100001010000110011
320011202000111
430201100303
51320010341
6154202151
736616300
oct14412063
96152014
103281971
111941880
121123357
138abac4
146160a7
1544c681
hex321433

3281971 has 12 divisors (see below), whose sum is σ = 4165560. Its totient is φ = 2556960.

The previous prime is 3281933. The next prime is 3281981. The reversal of 3281971 is 1791823.

It is a de Polignac number, because none of the positive numbers 2k-3281971 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3281911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2506 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (347130).

Almost surely, 23281971 is an apocalyptic number.

3281971 is a deficient number, since it is larger than the sum of its proper divisors (883589).

3281971 is a wasteful number, since it uses less digits than its factorization.

3281971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6107 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 3281971 is about 1811.6210972496. The cubic root of 3281971 is about 148.6089320035.

The spelling of 3281971 in words is "three million, two hundred eighty-one thousand, nine hundred seventy-one".

Divisors: 1 7 11 49 77 539 6089 42623 66979 298361 468853 3281971