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220210120 = 23513423481
BaseRepresentation
bin11010010000000…
…10001111001000
3120100100211111101
431020002033020
5422333210440
633503511144
75312520004
oct1510021710
9510324441
10220210120
11103337139
12618b84b4
1336812260
1421363704
15144ec69a
hexd2023c8

220210120 has 32 divisors (see below), whose sum is σ = 533587320. Its totient is φ = 81308160.

The previous prime is 220210103. The next prime is 220210141. The reversal of 220210120 is 21012022.

It can be written as a sum of positive squares in 4 ways, for example, as 64609444 + 155600676 = 8038^2 + 12474^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220210097 and 220210106.

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, 211221 + ... + 212260.

Almost surely, 2220210120 is an apocalyptic number.

220210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220210120 is an abundant number, since it is smaller than the sum of its proper divisors (313377200).

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

220210120 is a wasteful number, since it uses less digits than its factorization.

220210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423505 (or 423501 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220210120 is about 14839.4784274920. The cubic root of 220210120 is about 603.8732026277.

Adding to 220210120 its reverse (21012022), we get a palindrome (241222142).

The spelling of 220210120 in words is "two hundred twenty million, two hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 423481 846962 1693924 2117405 3387848 4234810 5505253 8469620 11010506 16939240 22021012 27526265 44042024 55052530 110105060 220210120