Search a number
-
+
1222201230 = 235172294861
BaseRepresentation
bin100100011011001…
…0100111110001110
310011011210020220020
41020312110332032
510000340414410
6321140003010
742200352615
oct11066247616
93134706806
101222201230
1157799a968
122a1390466
131662987c3
14b846c87c
1572473a70
hex48d94f8e

1222201230 has 96 divisors (see below), whose sum is σ = 3224089440. Its totient is φ = 296110080.

The previous prime is 1222201223. The next prime is 1222201273. The reversal of 1222201230 is 321022221.

It is a happy number.

1222201230 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12222012302 = 2987551693227025800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249000 + ... + 253860.

It is an arithmetic number, because the mean of its divisors is an integer number (33584265).

Almost surely, 21222201230 is an apocalyptic number.

1222201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222201230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612044720).

1222201230 is an abundant number, since it is smaller than the sum of its proper divisors (2001888210).

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

1222201230 is a wasteful number, since it uses less digits than its factorization.

1222201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934 (or 4917 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1222201230 is about 34959.9947082376. The cubic root of 1222201230 is about 1069.1719887569.

Adding to 1222201230 its reverse (321022221), we get a palindrome (1543223451).

The spelling of 1222201230 in words is "one billion, two hundred twenty-two million, two hundred one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 29 30 34 51 58 85 87 102 145 170 174 255 289 290 435 493 510 578 867 870 986 1445 1479 1734 2465 2890 2958 4335 4861 4930 7395 8381 8670 9722 14583 14790 16762 24305 25143 29166 41905 48610 50286 72915 82637 83810 125715 140969 145830 165274 247911 251430 281938 413185 422907 495822 704845 826370 845814 1239555 1404829 1409690 2114535 2396473 2479110 2809658 4214487 4229070 4792946 7024145 7189419 8428974 11982365 14048290 14378838 21072435 23964730 35947095 40740041 42144870 71894190 81480082 122220123 203700205 244440246 407400410 611100615 1222201230