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220220010 = 23252446889
BaseRepresentation
bin11010010000001…
…00101001101010
3120100101100001200
431020010221222
5422334020020
633504025030
75312560563
oct1510045152
9510340050
10220220010
1110334360a
1261902176
13368168ca
142136716a
1514500590
hexd204a6a

220220010 has 24 divisors (see below), whose sum is σ = 572572260. Its totient is φ = 58725312.

The previous prime is 220219991. The next prime is 220220053. The reversal of 220220010 is 10022022.

It can be written as a sum of positive squares in 2 ways, for example, as 202806081 + 17413929 = 14241^2 + 4173^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 220219974 and 220220001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1223355 + ... + 1223534.

Almost surely, 2220220010 is an apocalyptic number.

220220010 is an abundant number, since it is smaller than the sum of its proper divisors (352352250).

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

220220010 is a wasteful number, since it uses less digits than its factorization.

220220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446902 (or 2446899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 220220010 is about 14839.8116564867. The cubic root of 220220010 is about 603.8822428065.

Adding to 220220010 its reverse (10022022), we get a palindrome (230242032).

The spelling of 220220010 in words is "two hundred twenty million, two hundred twenty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2446889 4893778 7340667 12234445 14681334 22022001 24468890 36703335 44044002 73406670 110110005 220220010