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2013340031 = 5779348389
BaseRepresentation
bin111100000000001…
…0010000101111111
312012022110021022022
41320000102011333
513110403340111
6531440510355
7100615052003
oct17000220577
95168407268
102013340031
1194352918a
1248231b3bb
13261168281
1415156c703
15bbb4a2db
hex7801217f

2013340031 has 4 divisors (see below), whose sum is σ = 2013694200. Its totient is φ = 2012985864.

The previous prime is 2013340009. The next prime is 2013340033. The reversal of 2013340031 is 1300433102.

It is a happy number.

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 2013340031 - 214 = 2013323647 is a prime.

It is a super-2 number, since 2×20133400312 = 8107076160854161922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013339991 and 2013340009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013340033) 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, 168416 + ... + 179973.

It is an arithmetic number, because the mean of its divisors is an integer number (503423550).

Almost surely, 22013340031 is an apocalyptic number.

2013340031 is a deficient number, since it is larger than the sum of its proper divisors (354169).

2013340031 is an equidigital number, since it uses as much as digits as its factorization.

2013340031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354168.

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

The square root of 2013340031 is about 44870.2577549985. The cubic root of 2013340031 is about 1262.7160757638.

Adding to 2013340031 its reverse (1300433102), we get a palindrome (3313773133).

The spelling of 2013340031 in words is "two billion, thirteen million, three hundred forty thousand, thirty-one".

Divisors: 1 5779 348389 2013340031