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2203130220 = 2235373113191
BaseRepresentation
bin1000001101010001…
…0001100101101100
312200112120121111120
42003110101211230
514003000131340
61002340420540
7105411204114
oct20324214554
95615517446
102203130220
11a30678385
125159a7750
13291589365
1416c854044
15cd6394d0
hex8351196c

2203130220 has 96 divisors (see below), whose sum is σ = 6357851136. Its totient is φ = 569606400.

The previous prime is 2203130197. The next prime is 2203130221. The reversal of 2203130220 is 220313022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2203130220.

It is not an unprimeable number, because it can be changed into a prime (2203130221) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 688825 + ... + 692015.

It is an arithmetic number, because the mean of its divisors is an integer number (66227616).

Almost surely, 22203130220 is an apocalyptic number.

2203130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2203130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3178925568).

2203130220 is an abundant number, since it is smaller than the sum of its proper divisors (4154720916).

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

2203130220 is a wasteful number, since it uses less digits than its factorization.

2203130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2203130220 is about 46937.5139946717. The cubic root of 2203130220 is about 1301.2079935244.

Adding to 2203130220 its reverse (220313022), we get a palindrome (2423443242).

The spelling of 2203130220 in words is "two billion, two hundred three million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 311 370 444 555 622 740 933 1110 1244 1555 1866 2220 3110 3191 3732 4665 6220 6382 9330 9573 11507 12764 15955 18660 19146 23014 31910 34521 38292 46028 47865 57535 63820 69042 95730 115070 118067 138084 172605 191460 230140 236134 345210 354201 472268 590335 690420 708402 992401 1180670 1416804 1771005 1984802 2361340 2977203 3542010 3969604 4962005 5954406 7084020 9924010 11908812 14886015 19848020 29772030 36718837 59544060 73437674 110156511 146875348 183594185 220313022 367188370 440626044 550782555 734376740 1101565110 2203130220