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31035042344 = 233879380293
BaseRepresentation
bin11100111001110101…
…010010101000101000
32222002212220111112202
4130321311102220220
51002024432323334
622131324355332
72146035336005
oct347165225050
988085814482
1031035042344
1112186521729
1260216a5b48
132c079513a7
141705ab88ac
15c1992d17e
hex739d52a28

31035042344 has 8 divisors (see below), whose sum is σ = 58190704410. Its totient is φ = 15517521168.

The previous prime is 31035042293. The next prime is 31035042421. The reversal of 31035042344 is 44324053013.

It can be written as a sum of positive squares in only one way, i.e., 26711979844 + 4323062500 = 163438^2 + 65750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939690139 + ... + 1939690154.

Almost surely, 231035042344 is an apocalyptic number.

It is an amenable number.

31035042344 is a deficient number, since it is larger than the sum of its proper divisors (27155662066).

31035042344 is a wasteful number, since it uses less digits than its factorization.

31035042344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879380299 (or 3879380295 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 31035042344 its reverse (44324053013), we get a palindrome (75359095357).

The spelling of 31035042344 in words is "thirty-one billion, thirty-five million, forty-two thousand, three hundred forty-four".

Divisors: 1 2 4 8 3879380293 7758760586 15517521172 31035042344