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31300324131 = 348612146357
BaseRepresentation
bin11101001001101001…
…010000101100100011
32222210101002012202010
4131021221100230203
51003100340333011
622213522324003
72155436236206
oct351151205443
988711065663
1031300324131
111230224287a
1260964b9603
132c4a8b476b
14172d01193d
15c32d801a6
hex749a50b23

31300324131 has 8 divisors (see below), whose sum is σ = 41742370384. Its totient is φ = 20862580320.

The previous prime is 31300324091. The next prime is 31300324151. The reversal of 31300324131 is 13142300313.

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

It is not a de Polignac number, because 31300324131 - 26 = 31300324067 is a prime.

It is a super-2 number, since 2×313003241312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31300324098 and 31300324107.

It is not an unprimeable number, because it can be changed into a prime (31300324151) 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, 1058596 + ... + 1087761.

It is an arithmetic number, because the mean of its divisors is an integer number (5217796298).

Almost surely, 231300324131 is an apocalyptic number.

31300324131 is a deficient number, since it is larger than the sum of its proper divisors (10442046253).

31300324131 is a wasteful number, since it uses less digits than its factorization.

31300324131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151221.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31300324131 its reverse (13142300313), we get a palindrome (44442624444).

The spelling of 31300324131 in words is "thirty-one billion, three hundred million, three hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 3 4861 14583 2146357 6439071 10433441377 31300324131