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2130213305 = 511172278303
BaseRepresentation
bin111111011111000…
…0111100110111001
312111110101001022002
41332332013212321
513330313311210
6551213510345
7103534341263
oct17676074671
95443331262
102130213305
119a34a4870
124b54a23b5
1327c438c5c
14162cb2b33
15c70344a5
hex7ef879b9

2130213305 has 16 divisors (see below), whose sum is σ = 2952681984. Its totient is φ = 1458113280.

The previous prime is 2130213257. The next prime is 2130213311. The reversal of 2130213305 is 5033120312.

It is not a de Polignac number, because 2130213305 - 28 = 2130213049 is a prime.

It is a super-3 number, since 3×21302133053 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138217 + ... + 1140086.

It is an arithmetic number, because the mean of its divisors is an integer number (184542624).

Almost surely, 22130213305 is an apocalyptic number.

It is an amenable number.

2130213305 is a deficient number, since it is larger than the sum of its proper divisors (822468679).

2130213305 is a wasteful number, since it uses less digits than its factorization.

2130213305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278336.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2130213305 is about 46154.2338794612. The cubic root of 2130213305 is about 1286.6912994813.

Adding to 2130213305 its reverse (5033120312), we get a palindrome (7163333617).

The spelling of 2130213305 in words is "two billion, one hundred thirty million, two hundred thirteen thousand, three hundred five".

Divisors: 1 5 11 17 55 85 187 935 2278303 11391515 25061333 38731151 125306665 193655755 426042661 2130213305