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2120132020 = 225193549257
BaseRepresentation
bin111111001011110…
…1010010110110100
312110202101212101011
41332113222112310
513320223211040
6550213442004
7103352552626
oct17627522664
95422355334
102120132020
11998839626
124b2040304
1327a3193b6
1416180ac16
15c61e23ea
hex7e5ea5b4

2120132020 has 24 divisors (see below), whose sum is σ = 4475354184. Its totient is φ = 843657216.

The previous prime is 2120131957. The next prime is 2120132057. The reversal of 2120132020 is 202310212.

It can be written as a sum of positive squares in 4 ways, for example, as 493461796 + 1626670224 = 22214^2 + 40332^2 .

It is a congruent number.

It is an unprimeable number.

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, 270769 + ... + 278488.

It is an arithmetic number, because the mean of its divisors is an integer number (186473091).

Almost surely, 22120132020 is an apocalyptic number.

2120132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120132020 is an abundant number, since it is smaller than the sum of its proper divisors (2355222164).

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

2120132020 is a wasteful number, since it uses less digits than its factorization.

2120132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549459 (or 549457 counting only the distinct ones).

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

The square root of 2120132020 is about 46044.8913561537. The cubic root of 2120132020 is about 1284.6583233652.

Adding to 2120132020 its reverse (202310212), we get a palindrome (2322442232).

The spelling of 2120132020 in words is "two billion, one hundred twenty million, one hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 549257 1098514 2197028 2746285 5492570 10985140 106006601 212013202 424026404 530033005 1060066010 2120132020