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544305380 = 22540966541
BaseRepresentation
bin100000011100010…
…111000011100100
31101221012120121112
4200130113003210
52103320233010
6130002204152
716326343103
oct4034270344
91357176545
10544305380
1125a278763
12132353658
13889c84b8
145240a03a
1532bbaa05
hex207170e4

544305380 has 24 divisors (see below), whose sum is σ = 1145853240. Its totient is φ = 217186560.

The previous prime is 544305353. The next prime is 544305401. The reversal of 544305380 is 83503445.

It can be written as a sum of positive squares in 4 ways, for example, as 270799936 + 273505444 = 16456^2 + 16538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25091 + ... + 41450.

It is an arithmetic number, because the mean of its divisors is an integer number (47743885).

Almost surely, 2544305380 is an apocalyptic number.

It is an amenable number.

544305380 is an abundant number, since it is smaller than the sum of its proper divisors (601547860).

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

544305380 is a wasteful number, since it uses less digits than its factorization.

544305380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66959 (or 66957 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 544305380 is about 23330.3531906399. The cubic root of 544305380 is about 816.4837437500.

The spelling of 544305380 in words is "five hundred forty-four million, three hundred five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 409 818 1636 2045 4090 8180 66541 133082 266164 332705 665410 1330820 27215269 54430538 108861076 136076345 272152690 544305380