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80670 = 2352689
BaseRepresentation
bin10011101100011110
311002122210
4103230132
510040140
61421250
7454122
oct235436
9132583
1080670
1155677
123a826
132a945
1421582
1518d80
hex13b1e

80670 has 16 divisors (see below), whose sum is σ = 193680. Its totient is φ = 21504.

The previous prime is 80669. The next prime is 80671. The reversal of 80670 is 7608.

It is an interprime number because it is at equal distance from previous prime (80669) and next prime (80671).

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (12105).

280670 is an apocalyptic number.

80670 is an abundant number, since it is smaller than the sum of its proper divisors (113010).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96840).

80670 is a wasteful number, since it uses less digits than its factorization.

80670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 80670 is about 284.0246468178. The cubic root of 80670 is about 43.2086488171.

The spelling of 80670 in words is "eighty thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 2689 5378 8067 13445 16134 26890 40335 80670