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31340341333 = 74477191619
BaseRepresentation
bin11101001100000001…
…111010100001010101
32222220011101022000201
4131030001322201111
51003141111410313
622221512140501
72156433335350
oct351401724125
988804338021
1031340341333
1112322895344
1260a7997731
132c55c86092
14173446b297
15c366370dd
hex74c07a855

31340341333 has 4 divisors (see below), whose sum is σ = 35817532960. Its totient is φ = 26863149708.

The previous prime is 31340341283. The next prime is 31340341339. The reversal of 31340341333 is 33314304313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33314304313 = 79741799629.

It is a cyclic number.

It is not a de Polignac number, because 31340341333 - 217 = 31340210261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340341339) 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, 2238595803 + ... + 2238595816.

It is an arithmetic number, because the mean of its divisors is an integer number (8954383240).

Almost surely, 231340341333 is an apocalyptic number.

It is an amenable number.

31340341333 is a deficient number, since it is larger than the sum of its proper divisors (4477191627).

31340341333 is an equidigital number, since it uses as much as digits as its factorization.

31340341333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477191626.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31340341333 its reverse (33314304313), we get a palindrome (64654645646).

The spelling of 31340341333 in words is "thirty-one billion, three hundred forty million, three hundred forty-one thousand, three hundred thirty-three".

Divisors: 1 7 4477191619 31340341333