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2120454313 = 431391492381
BaseRepresentation
bin111111001100011…
…1001000010101001
312110210000020110221
41332120321002221
513320314014223
6550224410041
7103355364355
oct17630710251
95423006427
102120454313
11998a3978a
124b2176921
1327a3cccc3
14161892465
15c6257b5d
hex7e6390a9

2120454313 has 16 divisors (see below), whose sum is σ = 2200968000. Its totient is φ = 2041583040.

The previous prime is 2120454299. The next prime is 2120454317. The reversal of 2120454313 is 3134540212.

It is a cyclic number.

It is not a de Polignac number, because 2120454313 - 221 = 2118357161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120454317) 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, 889383 + ... + 891763.

It is an arithmetic number, because the mean of its divisors is an integer number (137560500).

Almost surely, 22120454313 is an apocalyptic number.

It is an amenable number.

2120454313 is a deficient number, since it is larger than the sum of its proper divisors (80513687).

2120454313 is a wasteful number, since it uses less digits than its factorization.

2120454313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2120454313 is about 46048.3909925200. The cubic root of 2120454313 is about 1284.7234160737.

Adding to 2120454313 its reverse (3134540212), we get a palindrome (5254994525).

The spelling of 2120454313 in words is "two billion, one hundred twenty million, four hundred fifty-four thousand, three hundred thirteen".

Divisors: 1 43 139 149 2381 5977 6407 20711 102383 330959 354769 890573 14231237 15255067 49312891 2120454313