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2110112220 = 223537950501
BaseRepresentation
bin111110111000101…
…1100000111011100
312110001112210210110
41331301130013130
513310142042340
6545215010020
7103201441446
oct17561340734
95401483713
102110112220
119931155a7
124aa809910
1327821b818
1416035d496
15c53b3680
hex7dc5c1dc

2110112220 has 48 divisors (see below), whose sum is σ = 6068004768. Its totient is φ = 547488000.

The previous prime is 2110112209. The next prime is 2110112227. The reversal of 2110112220 is 222110112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2110112196 and 2110112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110112227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473031 + ... + 477470.

It is an arithmetic number, because the mean of its divisors is an integer number (126416766).

Almost surely, 22110112220 is an apocalyptic number.

2110112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110112220 is an abundant number, since it is smaller than the sum of its proper divisors (3957892548).

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

2110112220 is a wasteful number, since it uses less digits than its factorization.

2110112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950550 (or 950548 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2110112220 is about 45935.9578108479. The cubic root of 2110112220 is about 1282.6313504234.

Adding to 2110112220 its reverse (222110112), we get a palindrome (2332222332).

The spelling of 2110112220 in words is "two billion, one hundred ten million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 950501 1901002 2851503 3802004 4752505 5703006 9505010 11406012 14257515 19010020 28515030 35168537 57030060 70337074 105505611 140674148 175842685 211011222 351685370 422022444 527528055 703370740 1055056110 2110112220