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1311230620054 = 223915083181871
BaseRepresentation
bin10011000101001011011…
…011110111000110010110
311122100111220202001201001
4103011023123313012112
5132440400014320204
62442212050453514
7163506342242035
oct23051333670626
94570456661631
101311230620054
114660a9557273
1219216059429a
1396857a3a354
144766cd2c71c
1524194d6b4a4
hex1314b6f7196

1311230620054 has 16 divisors (see below), whose sum is σ = 1975217218560. Its totient is φ = 652825274920.

The previous prime is 1311230620039. The next prime is 1311230620111. The reversal of 1311230620054 is 4500260321131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7118739 + ... + 7300609.

It is an arithmetic number, because the mean of its divisors is an integer number (123451076160).

Almost surely, 21311230620054 is an apocalyptic number.

1311230620054 is a deficient number, since it is larger than the sum of its proper divisors (663986598506).

1311230620054 is a wasteful number, since it uses less digits than its factorization.

1311230620054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197195.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1311230620054 its reverse (4500260321131), we get a palindrome (5811490941185).

The spelling of 1311230620054 in words is "one trillion, three hundred eleven billion, two hundred thirty million, six hundred twenty thousand, fifty-four".

Divisors: 1 2 239 478 15083 30166 181871 363742 3604837 7209674 43467169 86934338 2743160293 5486320586 655615310027 1311230620054