Search a number
670580 = 22533529
BaseRepresentation
bin10100011101101110100
31021001212022
42203231310
5132424310
622212312
75462021
oct2435564
91231768
10670580
114188a9
12284098
131a62c1
14136548
15d3a55
hexa3b74

670580 has 12 divisors (see below), whose sum is σ = 1408260. Its totient is φ = 268224.

The previous prime is 670577. The next prime is 670583. The reversal of 670580 is 85076.

It is an interprime number because it is at equal distance from previous prime (670577) and next prime (670583).

It can be written as a sum of positive squares in 2 ways, for example, as 327184 + 343396 = 572^2 + 586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16745 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (117355).

2670580 is an apocalyptic number.

It is an amenable number.

670580 is an abundant number, since it is smaller than the sum of its proper divisors (737680).

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

670580 is a wasteful number, since it uses less digits than its factorization.

670580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33538 (or 33536 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 670580 is about 818.8894919340. The cubic root of 670580 is about 87.5286436835.

The spelling of 670580 in words is "six hundred seventy thousand, five hundred eighty".