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485980 = 22511472
BaseRepresentation
bin1110110101001011100
3220200122021
41312221130
5111022410
614225524
74062565
oct1665134
9820567
10485980
11302140
121b52a4
13140281
14c916c
1598eda
hex76a5c

485980 has 36 divisors (see below), whose sum is σ = 1137528. Its totient is φ = 172960.

The previous prime is 485977. The next prime is 485993. The reversal of 485980 is 89584.

485980 = T51 + T52 + ... + T144.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10317 + ... + 10363.

It is an arithmetic number, because the mean of its divisors is an integer number (31598).

2485980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568764).

485980 is an abundant number, since it is smaller than the sum of its proper divisors (651548).

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

485980 is a wasteful number, since it uses less digits than its factorization.

485980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 485980 is about 697.1226577870. The cubic root of 485980 is about 78.6211633171.

The spelling of 485980 in words is "four hundred eighty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 47 55 94 110 188 220 235 470 517 940 1034 2068 2209 2585 4418 5170 8836 10340 11045 22090 24299 44180 48598 97196 121495 242990 485980