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31343014049 is a prime number
BaseRepresentation
bin11101001100001100…
…000111000010100001
32222220100102002022012
4131030030013002201
51003142302422144
622222045322305
72156465136464
oct351414070241
988810362265
1031343014049
11123243503a6
1260a8866395
132c566b0779
1417349652db
15c369b3e9e
hex74c3070a1

31343014049 has 2 divisors, whose sum is σ = 31343014050. Its totient is φ = 31343014048.

The previous prime is 31343014013. The next prime is 31343014057. The reversal of 31343014049 is 94041034313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30633750625 + 709263424 = 175025^2 + 26632^2 .

It is an emirp because it is prime and its reverse (94041034313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31343014049 is a prime.

It is a super-2 number, since 2×313430140492 (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31343014009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671507024 + 15671507025.

It is an arithmetic number, because the mean of its divisors is an integer number (15671507025).

Almost surely, 231343014049 is an apocalyptic number.

It is an amenable number.

31343014049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343014049 is an equidigital number, since it uses as much as digits as its factorization.

31343014049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 31343014049 in words is "thirty-one billion, three hundred forty-three million, fourteen thousand, forty-nine".