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2231040013 = 10960134057
BaseRepresentation
bin1000010011111010…
…1111100000001101
312202111002120112121
42010332233200031
514032121240023
61005214532541
7106200345556
oct20476574015
95674076477
102231040013
11a45400424
12523207151
132972abb27
1417243b32d
15d0cedd5d
hex84faf80d

2231040013 has 8 divisors (see below), whose sum is σ = 2255320760. Its totient is φ = 2206828800.

The previous prime is 2231039981. The next prime is 2231040107. The reversal of 2231040013 is 3100401322.

It is a happy number.

2231040013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1320086889 + 910953124 = 36333^2 + 30182^2 .

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 2231040013 - 25 = 2231039981 is a prime.

It is a super-3 number, since 3×22310400133 (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 (2231040113) 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, 48481 + ... + 82537.

It is an arithmetic number, because the mean of its divisors is an integer number (281915095).

Almost surely, 22231040013 is an apocalyptic number.

It is an amenable number.

2231040013 is a deficient number, since it is larger than the sum of its proper divisors (24280747).

2231040013 is a wasteful number, since it uses less digits than its factorization.

2231040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34767.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2231040013 is about 47233.8862788147. The cubic root of 2231040013 is about 1306.6796266401.

Adding to 2231040013 its reverse (3100401322), we get a palindrome (5331441335).

The spelling of 2231040013 in words is "two billion, two hundred thirty-one million, forty thousand, thirteen".

Divisors: 1 109 601 34057 65509 3712213 20468257 2231040013