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2130302231 = 4151958591
BaseRepresentation
bin111111011111001…
…1101010100010111
312111110112120021122
41332332131110113
513330324132411
6551215434155
7103535161451
oct17676352427
95443476248
102130302231
119a3555662
124b552595b
1327c46a585
14162cd72d1
15c70509db
hex7ef9d517

2130302231 has 4 divisors (see below), whose sum is σ = 2182260864. Its totient is φ = 2078343600.

The previous prime is 2130302227. The next prime is 2130302243. The reversal of 2130302231 is 1322030312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130302231 - 22 = 2130302227 is a prime.

It is a super-2 number, since 2×21303022312 = 9076375190807154722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130302261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25979255 + ... + 25979336.

It is an arithmetic number, because the mean of its divisors is an integer number (545565216).

Almost surely, 22130302231 is an apocalyptic number.

2130302231 is a deficient number, since it is larger than the sum of its proper divisors (51958633).

2130302231 is an equidigital number, since it uses as much as digits as its factorization.

2130302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51958632.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2130302231 is about 46155.1972263146. The cubic root of 2130302231 is about 1286.7092035910.

Adding to 2130302231 its reverse (1322030312), we get a palindrome (3452332543).

The spelling of 2130302231 in words is "two billion, one hundred thirty million, three hundred two thousand, two hundred thirty-one".

Divisors: 1 41 51958591 2130302231