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545380 = 225113767
BaseRepresentation
bin10000101001001100100
31000201010021
42011021210
5114423010
615404524
74431013
oct2051144
91021107
10545380
11342830
12223744
13161314
14102a7a
15ab8da
hex85264

545380 has 48 divisors (see below), whose sum is σ = 1302336. Its totient is φ = 190080.

The previous prime is 545371. The next prime is 545387. The reversal of 545380 is 83545.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (545387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8107 + ... + 8173.

It is an arithmetic number, because the mean of its divisors is an integer number (27132).

2545380 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 545380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651168).

545380 is an abundant number, since it is smaller than the sum of its proper divisors (756956).

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

545380 is a wasteful number, since it uses less digits than its factorization.

545380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 545380 is about 738.4984766403. The cubic root of 545380 is about 81.7020717419.

The spelling of 545380 in words is "five hundred forty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 67 74 110 134 148 185 220 268 335 370 407 670 737 740 814 1340 1474 1628 2035 2479 2948 3685 4070 4958 7370 8140 9916 12395 14740 24790 27269 49580 54538 109076 136345 272690 545380