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2120130103 = 71324739421
BaseRepresentation
bin111111001011110…
…1001111000110111
312110202101202202011
41332113221320313
513320223130403
6550213425051
7103352544220
oct17627517067
95422352664
102120130103
11998838143
124b203b187
1327a318570
1416180a247
15c61e1a6d
hex7e5e9e37

2120130103 has 16 divisors (see below), whose sum is σ = 2610723136. Its totient is φ = 1676609280.

The previous prime is 2120130073. The next prime is 2120130109. The reversal of 2120130103 is 3010310212.

It is a cyclic number.

It is not a de Polignac number, because 2120130103 - 25 = 2120130071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120130109) 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, 220333 + ... + 229753.

It is an arithmetic number, because the mean of its divisors is an integer number (163170196).

Almost surely, 22120130103 is an apocalyptic number.

2120130103 is a deficient number, since it is larger than the sum of its proper divisors (490593033).

2120130103 is a wasteful number, since it uses less digits than its factorization.

2120130103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2120130103 is about 46044.8705395074. The cubic root of 2120130103 is about 1284.6579361737.

Adding to 2120130103 its reverse (3010310212), we get a palindrome (5130440315).

The spelling of 2120130103 in words is "two billion, one hundred twenty million, one hundred thirty thousand, one hundred three".

Divisors: 1 7 13 91 2473 9421 17311 32149 65947 122473 225043 857311 23298133 163086931 302875729 2120130103