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1312142153444 = 225925721633947
BaseRepresentation
bin10011000110000001110…
…001000101011011100100
311122102212102221202102222
4103012001301011123210
5132444231342402234
62442442332051512
7163541051164553
oct23060161053344
94572772852388
101312142153444
11466527046851
12192375903b98
1396971841515
144771800bd9a
15241e9dc542e
hex13181c456e4

1312142153444 has 24 divisors (see below), whose sum is σ = 2344254605280. Its totient is φ = 642441660416.

The previous prime is 1312142153429. The next prime is 1312142153513. The reversal of 1312142153444 is 4443512412131.

It is a super-2 number, since 2×13121421534442 (a number of 25 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 10756322 + ... + 10877625.

It is an arithmetic number, because the mean of its divisors is an integer number (97677275220).

Almost surely, 21312142153444 is an apocalyptic number.

It is an amenable number.

1312142153444 is a deficient number, since it is larger than the sum of its proper divisors (1032112451836).

1312142153444 is a wasteful number, since it uses less digits than its factorization.

1312142153444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21634267 (or 21634265 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

Adding to 1312142153444 its reverse (4443512412131), we get a palindrome (5755654565575).

The spelling of 1312142153444 in words is "one trillion, three hundred twelve billion, one hundred forty-two million, one hundred fifty-three thousand, four hundred forty-four".

Divisors: 1 2 4 59 118 236 257 514 1028 15163 30326 60652 21633947 43267894 86535788 1276402873 2552805746 5105611492 5559924379 11119848758 22239697516 328035538361 656071076722 1312142153444