Search a number
-
+
30111310220 = 2258117185483
BaseRepresentation
bin11100000010110001…
…100010000110001100
32212201111202001021212
4130002301202012030
5443131443411340
621455525513552
72114120625305
oct340261420614
985644661255
1030111310220
1111852060052
125a042728b8
132abb468934
1416591417ac
15bb37b4a65
hex702c6218c

30111310220 has 24 divisors (see below), whose sum is σ = 63241882704. Its totient is φ = 12042975296.

The previous prime is 30111310217. The next prime is 30111310291. The reversal of 30111310220 is 2201311103.

It is a junction number, because it is equal to n+sod(n) for n = 30111310195 and 30111310204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69599 + ... + 255081.

It is an arithmetic number, because the mean of its divisors is an integer number (2635078446).

Almost surely, 230111310220 is an apocalyptic number.

It is an amenable number.

30111310220 is an abundant number, since it is smaller than the sum of its proper divisors (33130572484).

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

30111310220 is a wasteful number, since it uses less digits than its factorization.

30111310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193609 (or 193607 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30111310220 its reverse (2201311103), we get a palindrome (32312621323).

The spelling of 30111310220 in words is "thirty billion, one hundred eleven million, three hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 8117 16234 32468 40585 81170 162340 185483 370966 741932 927415 1854830 3709660 1505565511 3011131022 6022262044 7527827555 15055655110 30111310220