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421180 = 22521059
BaseRepresentation
bin1100110110100111100
3210101202021
41212310330
5101434210
613005524
73402634
oct1466474
9711667
10421180
11268491
121838a4
13119926
14ad6c4
1584bda
hex66d3c

421180 has 12 divisors (see below), whose sum is σ = 884520. Its totient is φ = 168464.

The previous prime is 421177. The next prime is 421181. The reversal of 421180 is 81124.

It is a happy number.

421180 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421181) 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, 10510 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2421180 is an apocalyptic number.

It is an amenable number.

421180 is an abundant number, since it is smaller than the sum of its proper divisors (463340).

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

421180 is a wasteful number, since it uses less digits than its factorization.

421180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21068 (or 21066 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 421180 is about 648.9838210618. The cubic root of 421180 is about 74.9587921778.

The spelling of 421180 in words is "four hundred twenty-one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 21059 42118 84236 105295 210590 421180