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670271 = 7213679
BaseRepresentation
bin10100011101000111111
31021001102212
42203220333
5132422041
622211035
75461100
oct2435077
91231385
10670271
11418648
12283a7b
131a6114
141363a7
15d38eb
hexa3a3f

670271 has 6 divisors (see below), whose sum is σ = 779760. Its totient is φ = 574476.

The previous prime is 670261. The next prime is 670279. The reversal of 670271 is 172076.

It is a happy number.

It is not a de Polignac number, because 670271 - 210 = 669247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6791 + ... + 6888.

It is an arithmetic number, because the mean of its divisors is an integer number (129960).

2670271 is an apocalyptic number.

670271 is a deficient number, since it is larger than the sum of its proper divisors (109489).

670271 is a wasteful number, since it uses less digits than its factorization.

670271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13693 (or 13686 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 670271 is about 818.7008000485. The cubic root of 670271 is about 87.5151973603.

The spelling of 670271 in words is "six hundred seventy thousand, two hundred seventy-one".

Divisors: 1 7 49 13679 95753 670271