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220523130 = 23256736571
BaseRepresentation
bin11010010010011…
…10101001111010
3120100221201212100
431021032221322
5422423220010
633514324230
75315262402
oct1511165172
9510851770
10220523130
11103530323
1261a29676
13368c1879
1421405802
15145602c0
hexd24ea7a

220523130 has 48 divisors (see below), whose sum is σ = 581933664. Its totient is φ = 57926880.

The previous prime is 220523111. The next prime is 220523137. The reversal of 220523130 is 31325022.

220523130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220523137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12256 + ... + 24315.

It is an arithmetic number, because the mean of its divisors is an integer number (12123618).

Almost surely, 2220523130 is an apocalyptic number.

220523130 is an abundant number, since it is smaller than the sum of its proper divisors (361410534).

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

220523130 is a wasteful number, since it uses less digits than its factorization.

220523130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36651 (or 36648 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 220523130 is about 14850.0212121061. The cubic root of 220523130 is about 604.1591853427.

Adding to 220523130 its reverse (31325022), we get a palindrome (251848152).

The spelling of 220523130 in words is "two hundred twenty million, five hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 67 90 134 201 335 402 603 670 1005 1206 2010 3015 6030 36571 73142 109713 182855 219426 329139 365710 548565 658278 1097130 1645695 2450257 3291390 4900514 7350771 12251285 14701542 22052313 24502570 36753855 44104626 73507710 110261565 220523130