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2120010220 = 225642716493
BaseRepresentation
bin111111001011100…
…1100100111101100
312110202011200022001
41332113030213230
513320210311340
6550211102044
7103351534546
oct17627144754
95422150261
102120010220
11998766069
124b1ba1924
1327a2a5b23
141617b8696
15c61bb29a
hex7e5cc9ec

2120010220 has 24 divisors (see below), whose sum is σ = 4452984144. Its totient is φ = 847820736.

The previous prime is 2120010197. The next prime is 2120010227. The reversal of 2120010220 is 220100212.

Adding to 2120010220 its reverse (220100212), we get a palindrome (2340110432).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2120010197 and 2120010206.

It is not an unprimeable number, because it can be changed into a prime (2120010227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120294 + ... + 136786.

It is an arithmetic number, because the mean of its divisors is an integer number (185541006).

Almost surely, 22120010220 is an apocalyptic number.

2120010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120010220 is an abundant number, since it is smaller than the sum of its proper divisors (2332973924).

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

2120010220 is a wasteful number, since it uses less digits than its factorization.

2120010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22929 (or 22927 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2120010220 is about 46043.5687148596. The cubic root of 2120010220 is about 1284.6337220072.

The spelling of 2120010220 in words is "two billion, one hundred twenty million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6427 12854 16493 25708 32135 32986 64270 65972 82465 128540 164930 329860 106000511 212001022 424002044 530002555 1060005110 2120010220