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220024020 = 22358941203
BaseRepresentation
bin11010001110101…
…00110011010100
3120100000101012210
431013110303110
5422311232040
633455513420
75311113306
oct1507246324
9510011183
10220024020
1110321a337
1261828870
1336778638
1421315976
15144b2480
hexd1d4cd4

220024020 has 48 divisors (see below), whose sum is σ = 623004480. Its totient is φ = 58012416.

The previous prime is 220023989. The next prime is 220024027. The reversal of 220024020 is 20420022.

It is a happy number.

220024020 is digitally balanced in base 2, 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 220023987 and 220024005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220024027) 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, 15262 + ... + 25941.

It is an arithmetic number, because the mean of its divisors is an integer number (12979260).

Almost surely, 2220024020 is an apocalyptic number.

220024020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220024020 is an abundant number, since it is smaller than the sum of its proper divisors (402980460).

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

220024020 is a wasteful number, since it uses less digits than its factorization.

220024020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41304 (or 41302 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 220024020 is about 14833.2066661258. The cubic root of 220024020 is about 603.7030432126.

Adding to 220024020 its reverse (20420022), we get a palindrome (240444042).

The spelling of 220024020 in words is "two hundred twenty million, twenty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 534 890 1068 1335 1780 2670 5340 41203 82406 123609 164812 206015 247218 412030 494436 618045 824060 1236090 2472180 3667067 7334134 11001201 14668268 18335335 22002402 36670670 44004804 55006005 73341340 110012010 220024020