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2220180102 = 232722517211
BaseRepresentation
bin1000010001010101…
…0100001010000110
312201201122211112200
42010111110022012
514021331230402
61004150055330
7106006135200
oct20425241206
95651584480
102220180102
11a3a263198
1251b64a546
13294c78a4a
14170c11770
15ceda621c
hex84554286

2220180102 has 36 divisors (see below), whose sum is σ = 5595762276. Its totient is φ = 634336920.

The previous prime is 2220180101. The next prime is 2220180113. The reversal of 2220180102 is 2010810222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220180101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1257724 + ... + 1259487.

It is an arithmetic number, because the mean of its divisors is an integer number (155437841).

Almost surely, 22220180102 is an apocalyptic number.

2220180102 is an abundant number, since it is smaller than the sum of its proper divisors (3375582174).

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

2220180102 is a wasteful number, since it uses less digits than its factorization.

2220180102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517233 (or 2517223 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2220180102 is about 47118.7871448322. The cubic root of 2220180102 is about 1304.5560263632.

Adding to 2220180102 its reverse (2010810222), we get a palindrome (4230990324).

The spelling of 2220180102 in words is "two billion, two hundred twenty million, one hundred eighty thousand, one hundred two".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 2517211 5034422 7551633 15103266 17620477 22654899 35240954 45309798 52861431 105722862 123343339 158584293 246686678 317168586 370030017 740060034 1110090051 2220180102