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220541360 = 245131911161
BaseRepresentation
bin11010010010100…
…11000110110000
3120100222122212112
431021103012300
5422424310420
633514544452
75315366504
oct1511230660
9510878775
10220541360
11103542a96
1261a38128
13368c9c60
142140c304
15145658c5
hexd2531b0

220541360 has 80 divisors (see below), whose sum is σ = 581316960. Its totient is φ = 77137920.

The previous prime is 220541353. The next prime is 220541381. The reversal of 220541360 is 63145022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14180 + ... + 25340.

It is an arithmetic number, because the mean of its divisors is an integer number (7266462).

Almost surely, 2220541360 is an apocalyptic number.

220541360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220541360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290658480).

220541360 is an abundant number, since it is smaller than the sum of its proper divisors (360775600).

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

220541360 is a wasteful number, since it uses less digits than its factorization.

220541360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206 (or 11200 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 220541360 is about 14850.6350032583. The cubic root of 220541360 is about 604.1758329062.

Adding to 220541360 its reverse (63145022), we get a palindrome (283686382).

The spelling of 220541360 in words is "two hundred twenty million, five hundred forty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 19 20 26 38 40 52 65 76 80 95 104 130 152 190 208 247 260 304 380 494 520 760 988 1040 1235 1520 1976 2470 3952 4940 9880 11161 19760 22322 44644 55805 89288 111610 145093 178576 212059 223220 290186 424118 446440 580372 725465 848236 892880 1060295 1160744 1450930 1696472 2120590 2321488 2756767 2901860 3392944 4241180 5513534 5803720 8482360 11027068 11607440 13783835 16964720 22054136 27567670 44108272 55135340 110270680 220541360