Search a number
-
+
1220330222 = 2797723609
BaseRepresentation
bin100100010111100…
…1100001011101110
310011001021012100122
41020233030023232
54444401031342
6321031524542
742145431026
oct11057141356
93131235318
101220330222
11576932181
122a0829752
13165a91cb7
14b8102a86
15722044d2
hex48bcc2ee

1220330222 has 8 divisors (see below), whose sum is σ = 1853666400. Its totient is φ = 602441424.

The previous prime is 1220330213. The next prime is 1220330311. The reversal of 1220330222 is 2220330221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1220330222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861647 + ... + 3861962.

It is an arithmetic number, because the mean of its divisors is an integer number (231708300).

Almost surely, 21220330222 is an apocalyptic number.

1220330222 is a deficient number, since it is larger than the sum of its proper divisors (633336178).

1220330222 is an equidigital number, since it uses as much as digits as its factorization.

1220330222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723690.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220330222 is about 34933.2251874916. The cubic root of 1220330222 is about 1068.6261291088.

Adding to 1220330222 its reverse (2220330221), we get a palindrome (3440660443).

Subtracting 1220330222 from its reverse (2220330221), we obtain a palindrome (999999999).

The spelling of 1220330222 in words is "one billion, two hundred twenty million, three hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 79 158 7723609 15447218 610165111 1220330222