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30312312213013 = 613863497325867
BaseRepresentation
bin1101110010001101000101…
…00110100000111000010101
310222022211101011020000022121
412321012202212200320111
512433114103411304023
6144245141201455541
76245664232402405
oct671064246407025
9128284334200277
1030312312213013
11972741a005206
1234968900415b1
1313bb591cb83ac
1476b1a377c805
1537875d32ad5d
hex1b91a29a0e15

30312312213013 has 16 divisors (see below), whose sum is σ = 30824599349376. Its totient is φ = 29800524853440.

The previous prime is 30312312212857. The next prime is 30312312213059. The reversal of 30312312213013 is 31031221321303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30312312213013 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 (30312312214013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171839706 + ... + 1171865572.

It is an arithmetic number, because the mean of its divisors is an integer number (1926537459336).

Almost surely, 230312312213013 is an apocalyptic number.

It is an amenable number.

30312312213013 is a deficient number, since it is larger than the sum of its proper divisors (512287136363).

30312312213013 is a wasteful number, since it uses less digits than its factorization.

30312312213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34764.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 30312312213013 its reverse (31031221321303), we get a palindrome (61343533534316).

The spelling of 30312312213013 in words is "thirty trillion, three hundred twelve billion, three hundred twelve million, two hundred thirteen thousand, thirteen".

Divisors: 1 61 3863 4973 25867 235643 303353 1577887 19210699 99924221 128636591 1171852639 6095377481 7846832051 496923151033 30312312213013