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2220231100 = 225224599029
BaseRepresentation
bin1000010001010110…
…0000100110111100
312201201202102111111
42010111200212330
514021334343400
61004151131404
7106006436653
oct20425404674
95651672444
102220231100
11a3a29853a
1251b673b64
13294c96019
14170c2619a
15cedb63ba
hex845609bc

2220231100 has 36 divisors (see below), whose sum is σ = 4820394600. Its totient is φ = 887632960.

The previous prime is 2220231077. The next prime is 2220231103. The reversal of 2220231100 is 11320222.

It is a super-3 number, since 3×22202311003 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220231103) 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 11 ways as a sum of consecutive naturals, for example, 241386 + ... + 250414.

It is an arithmetic number, because the mean of its divisors is an integer number (133899850).

Almost surely, 22220231100 is an apocalyptic number.

2220231100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220231100 is an abundant number, since it is smaller than the sum of its proper divisors (2600163500).

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

2220231100 is a wasteful number, since it uses less digits than its factorization.

2220231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502 (or 11495 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2220231100 is about 47119.3283059086. The cubic root of 2220231100 is about 1304.5660149281.

Adding to 2220231100 its reverse (11320222), we get a palindrome (2231551322).

The spelling of 2220231100 in words is "two billion, two hundred twenty million, two hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2459 4918 9029 9836 12295 18058 24590 36116 45145 49180 61475 90290 122950 180580 225725 245900 451450 902900 22202311 44404622 88809244 111011555 222023110 444046220 555057775 1110115550 2220231100