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13040422031 = 713143301341
BaseRepresentation
bin11000010010100010…
…10000110010001111
31020122210212002001202
430021101100302033
5203201322001111
65553553300115
7641103521060
oct141121206217
936583762052
1013040422031
115591a8409a
12263b26463b
1312ca885670
148b9c8c567
15514c88b3b
hex309450c8f

13040422031 has 8 divisors (see below), whose sum is σ = 16049750304. Its totient is φ = 10317696480.

The previous prime is 13040422013. The next prime is 13040422037. The reversal of 13040422031 is 13022404031.

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

It is not a de Polignac number, because 13040422031 - 218 = 13040159887 is a prime.

It is a super-2 number, since 2×130404220312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13040421994 and 13040422012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040422037) 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, 71650580 + ... + 71650761.

It is an arithmetic number, because the mean of its divisors is an integer number (2006218788).

Almost surely, 213040422031 is an apocalyptic number.

13040422031 is a deficient number, since it is larger than the sum of its proper divisors (3009328273).

13040422031 is a wasteful number, since it uses less digits than its factorization.

13040422031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143301361.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13040422031 its reverse (13022404031), we get a palindrome (26062826062).

The spelling of 13040422031 in words is "thirteen billion, forty million, four hundred twenty-two thousand, thirty-one".

Divisors: 1 7 13 91 143301341 1003109387 1862917433 13040422031