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2231023213 = 47352913451
BaseRepresentation
bin1000010011111010…
…1011011001101101
312202111001201111101
42010332223121231
514032120220323
61005214323101
7106200245566
oct20476533155
95674051441
102231023213
11a45399841
125231b9491
132972a42a3
1417243516d
15d0ce8dad
hex84fab66d

2231023213 has 8 divisors (see below), whose sum is σ = 2279306880. Its totient is φ = 2182773600.

The previous prime is 2231023199. The next prime is 2231023259. The reversal of 2231023213 is 3123201322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231023213 - 213 = 2231015021 is a prime.

It is a super-3 number, since 3×22310232133 (a number of 29 digits) contains 333 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 (2231023013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159138 + ... + 172588.

It is an arithmetic number, because the mean of its divisors is an integer number (284913360).

Almost surely, 22231023213 is an apocalyptic number.

It is an amenable number.

2231023213 is a deficient number, since it is larger than the sum of its proper divisors (48283667).

2231023213 is a wasteful number, since it uses less digits than its factorization.

2231023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2231023213 is about 47233.7084400537. The cubic root of 2231023213 is about 1306.6763468136.

Adding to 2231023213 its reverse (3123201322), we get a palindrome (5354224535).

The spelling of 2231023213 in words is "two billion, two hundred thirty-one million, twenty-three thousand, two hundred thirteen".

Divisors: 1 47 3529 13451 165863 632197 47468579 2231023213