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545024020 = 225316114411
BaseRepresentation
bin100000011111000…
…110100000010100
31101222120002101211
4200133012200110
52104011232040
6130025431204
716335425212
oct4037064024
91358502354
10545024020
1125a719682
1213263b504
1388bba628
1452555cb2
1532cad8ea
hex207c6814

545024020 has 48 divisors (see below), whose sum is σ = 1200923136. Its totient is φ = 207504000.

The previous prime is 545023991. The next prime is 545024021. The reversal of 545024020 is 20420545.

It is a junction number, because it is equal to n+sod(n) for n = 545023982 and 545024000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545024021) 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 15 ways as a sum of consecutive naturals, for example, 30615 + ... + 45025.

It is an arithmetic number, because the mean of its divisors is an integer number (25019232).

Almost surely, 2545024020 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 545024020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600461568).

545024020 is an abundant number, since it is smaller than the sum of its proper divisors (655899116).

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

545024020 is a wasteful number, since it uses less digits than its factorization.

545024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14512 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 545024020 is about 23345.7495060664. The cubic root of 545024020 is about 816.8429170245.

Adding to 545024020 its reverse (20420545), we get a palindrome (565444565).

The spelling of 545024020 in words is "five hundred forty-five million, twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 31 61 62 122 124 155 244 305 310 610 620 1220 1891 3782 7564 9455 14411 18910 28822 37820 57644 72055 144110 288220 446741 879071 893482 1758142 1786964 2233705 3516284 4395355 4467410 8790710 8934820 17581420 27251201 54502402 109004804 136256005 272512010 545024020