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532780240 = 245411271279
BaseRepresentation
bin11111110000011…
…001010011010000
31101010112001002111
4133300121103100
52042342431430
6124511155104
716126362106
oct3760312320
91333461074
10532780240
11253816753
1212a515a94
13864c16a5
1450a89c76
1531b90c2a
hex1fc194d0

532780240 has 80 divisors (see below), whose sum is σ = 1279918080. Its totient is φ = 206115840.

The previous prime is 532780231. The next prime is 532780243. The reversal of 532780240 is 42087235.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532780243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415921 + ... + 417199.

It is an arithmetic number, because the mean of its divisors is an integer number (15998976).

Almost surely, 2532780240 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 532780240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639959040).

532780240 is an abundant number, since it is smaller than the sum of its proper divisors (747137840).

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

532780240 is a wasteful number, since it uses less digits than its factorization.

532780240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 532780240 is about 23082.0328394186. The cubic root of 532780240 is about 810.6798336653.

The spelling of 532780240 in words is "five hundred thirty-two million, seven hundred eighty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 127 164 205 254 328 410 508 635 656 820 1016 1270 1279 1640 2032 2540 2558 3280 5080 5116 5207 6395 10160 10232 10414 12790 20464 20828 25580 26035 41656 51160 52070 52439 83312 102320 104140 104878 162433 208280 209756 262195 324866 416560 419512 524390 649732 812165 839024 1048780 1299464 1624330 2097560 2598928 3248660 4195120 6497320 6659753 12994640 13319506 26639012 33298765 53278024 66597530 106556048 133195060 266390120 532780240