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31344304141 = 62694999889
BaseRepresentation
bin11101001100010001…
…000010000000001101
32222220102211121222101
4131030101002000031
51003143120213031
622222133115101
72156512121623
oct351421020015
988812747871
1031344304141
1112325051697
1260a9188a91
132c56a42a37
141734bbd513
15c36b6b361
hex74c44200d

31344304141 has 4 divisors (see below), whose sum is σ = 31349310300. Its totient is φ = 31339297984.

The previous prime is 31344304139. The next prime is 31344304157. The reversal of 31344304141 is 14140344313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14140344313 = 91115521783.

It can be written as a sum of positive squares in 2 ways, for example, as 6391362916 + 24952941225 = 79946^2 + 157965^2 .

It is a cyclic number.

It is not a de Polignac number, because 31344304141 - 21 = 31344304139 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 (31344304181) 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, 2493676 + ... + 2506213.

It is an arithmetic number, because the mean of its divisors is an integer number (7837327575).

Almost surely, 231344304141 is an apocalyptic number.

It is an amenable number.

31344304141 is a deficient number, since it is larger than the sum of its proper divisors (5006159).

31344304141 is an equidigital number, since it uses as much as digits as its factorization.

31344304141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006158.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31344304141 its reverse (14140344313), we get a palindrome (45484648454).

The spelling of 31344304141 in words is "thirty-one billion, three hundred forty-four million, three hundred four thousand, one hundred forty-one".

Divisors: 1 6269 4999889 31344304141