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536881220 = 22526844061
BaseRepresentation
bin100000000000000…
…010100001000100
31101102020101120122
4200000002201010
52044420144340
6125135121112
716206262241
oct4000024104
91342211518
10536881220
11256067897
1212b973198
13872c91c5
14514365c8
1532200db5
hex20002844

536881220 has 12 divisors (see below), whose sum is σ = 1127450604. Its totient is φ = 214752480.

The previous prime is 536881207. The next prime is 536881223. The reversal of 536881220 is 22188635.

It can be written as a sum of positive squares in 2 ways, for example, as 162613504 + 374267716 = 12752^2 + 19346^2 .

It is not an unprimeable number, because it can be changed into a prime (536881223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13422011 + ... + 13422050.

It is an arithmetic number, because the mean of its divisors is an integer number (93954217).

Almost surely, 2536881220 is an apocalyptic number.

It is an amenable number.

536881220 is an abundant number, since it is smaller than the sum of its proper divisors (590569384).

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

536881220 is a wasteful number, since it uses less digits than its factorization.

536881220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844070 (or 26844068 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 536881220 is about 23170.6974431069. The cubic root of 536881220 is about 812.7545402098.

The spelling of 536881220 in words is "five hundred thirty-six million, eight hundred eighty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 26844061 53688122 107376244 134220305 268440610 536881220