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2231061613 = 11712856673
BaseRepresentation
bin1000010011111011…
…0100110001101101
312202111010200011121
42010332310301231
514032122432423
61005215220541
7106200465544
oct20476646155
95674120147
102231061613
11a45415680
12523217751
132972b8901
1417244515b
15d0d0545d
hex84fb4c6d

2231061613 has 8 divisors (see below), whose sum is σ = 2468166336. Its totient is φ = 1999670400.

The previous prime is 2231061607. The next prime is 2231061683. The reversal of 2231061613 is 3161601322.

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 2231061613 - 213 = 2231053421 is a prime.

It is a super-3 number, since 3×22310616133 (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 (2231061683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427556 + ... + 1429117.

It is an arithmetic number, because the mean of its divisors is an integer number (308520792).

Almost surely, 22231061613 is an apocalyptic number.

It is an amenable number.

2231061613 is a deficient number, since it is larger than the sum of its proper divisors (237104723).

2231061613 is a wasteful number, since it uses less digits than its factorization.

2231061613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856755.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2231061613 is about 47234.1149276664. The cubic root of 2231061613 is about 1306.6838435358.

Adding to 2231061613 its reverse (3161601322), we get a palindrome (5392662935).

The spelling of 2231061613 in words is "two billion, two hundred thirty-one million, sixty-one thousand, six hundred thirteen".

Divisors: 1 11 71 781 2856673 31423403 202823783 2231061613