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31342123244 = 22371271667489
BaseRepresentation
bin11101001100001000…
…101101100011101100
32222220021201211100102
4131030020231203230
51003142040420434
622222014250232
72156454436415
oct351410554354
988807654312
1031342123244
11123238a20a3
1260a84b6978
132c5645b173
1417347b280c
15c3688a07e
hex74c22d8ec

31342123244 has 24 divisors (see below), whose sum is σ = 56774699520. Its totient is φ = 15127451136.

The previous prime is 31342123237. The next prime is 31342123247. The reversal of 31342123244 is 44232124313.

It is not an unprimeable number, because it can be changed into a prime (31342123247) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 814949 + ... + 852540.

It is an arithmetic number, because the mean of its divisors is an integer number (2365612480).

Almost surely, 231342123244 is an apocalyptic number.

It is an amenable number.

31342123244 is a deficient number, since it is larger than the sum of its proper divisors (25432576276).

31342123244 is a wasteful number, since it uses less digits than its factorization.

31342123244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667657 (or 1667655 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 31342123244 its reverse (44232124313), we get a palindrome (75574247557).

The spelling of 31342123244 in words is "thirty-one billion, three hundred forty-two million, one hundred twenty-three thousand, two hundred forty-four".

Divisors: 1 2 4 37 74 127 148 254 508 4699 9398 18796 1667489 3334978 6669956 61697093 123394186 211771103 246788372 423542206 847084412 7835530811 15671061622 31342123244