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534507220 = 225135693613
BaseRepresentation
bin11111110110111…
…110111011010100
31101020202210001201
4133312332323110
52043313212340
6125012202244
716150144042
oct3766767324
91336683051
10534507220
11254796205
1212b009384
1386977780
1450db9392
1531dd279a
hex1fdbeed4

534507220 has 48 divisors (see below), whose sum is σ = 1211268240. Its totient is φ = 196955136.

The previous prime is 534507209. The next prime is 534507223. The reversal of 534507220 is 22705435.

It can be written as a sum of positive squares in 8 ways, for example, as 291521476 + 242985744 = 17074^2 + 15588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534507223) 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, 146134 + ... + 149746.

It is an arithmetic number, because the mean of its divisors is an integer number (25234755).

Almost surely, 2534507220 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 534507220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605634120).

534507220 is an abundant number, since it is smaller than the sum of its proper divisors (676761020).

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

534507220 is a wasteful number, since it uses less digits than its factorization.

534507220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 534507220 is about 23119.4121897595. The cubic root of 534507220 is about 811.5548147338.

The spelling of 534507220 in words is "five hundred thirty-four million, five hundred seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 569 1138 2276 2845 3613 5690 7226 7397 11380 14452 14794 18065 29588 36130 36985 46969 72260 73970 93938 147940 187876 234845 469690 939380 2055797 4111594 8223188 10278985 20557970 26725361 41115940 53450722 106901444 133626805 267253610 534507220