Search a number
-
+
1220313030310 = 2511175953109621
BaseRepresentation
bin10001110000100000010…
…100110001111010100110
311022122211201020222002101
4101300200110301322212
5124443200113432220
62332334251202314
7154110331416523
oct21604024617246
94278751228071
101220313030310
1143059398a450
1217860844639a
138b0c8aa337a
14430c621614a
1521b2318b30a
hex11c20531ea6

1220313030310 has 64 divisors (see below), whose sum is σ = 2537656340544. Its totient is φ = 417573273600.

The previous prime is 1220313030289. The next prime is 1220313030311. The reversal of 1220313030310 is 130303130221.

It is a super-2 number, since 2×12203130303102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220313030311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11077300 + ... + 11186920.

It is an arithmetic number, because the mean of its divisors is an integer number (39650880321).

Almost surely, 21220313030310 is an apocalyptic number.

1220313030310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220313030310 is an abundant number, since it is smaller than the sum of its proper divisors (1317343310234).

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

1220313030310 is a wasteful number, since it uses less digits than its factorization.

1220313030310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115609.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1220313030310 its reverse (130303130221), we get a palindrome (1350616160531).

The spelling of 1220313030310 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, thirty thousand, three hundred ten".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 5953 11906 29765 59530 65483 101201 109621 130966 202402 219242 327415 506005 548105 654830 1012010 1096210 1113211 1205831 1863557 2226422 2411662 3727114 5566055 6029155 9317785 11132110 12058310 18635570 20499127 40998254 102495635 204991270 652573813 1305147626 3262869065 6525738130 7178311943 11093754821 14356623886 22187509642 35891559715 55468774105 71783119430 110937548210 122031303031 244062606062 610156515155 1220313030310