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671272 = 23711987
BaseRepresentation
bin10100011111000101000
31021002210221
42203320220
5132440042
622215424
75464030
oct2437050
91232727
10671272
11419378
12284574
131a6704
141368c0
15d3d67
hexa3e28

671272 has 16 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 287664.

The previous prime is 671269. The next prime is 671287. The reversal of 671272 is 272176.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5938 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2671272 is an apocalyptic number.

It is an amenable number.

671272 is an abundant number, since it is smaller than the sum of its proper divisors (767288).

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

671272 is a wasteful number, since it uses less digits than its factorization.

671272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000 (or 11996 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 671272 is about 819.3119064190. The cubic root of 671272 is about 87.5587415085.

The spelling of 671272 in words is "six hundred seventy-one thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 11987 23974 47948 83909 95896 167818 335636 671272