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12442243600015 = 513998299182123
BaseRepresentation
bin1011010100001110111110…
…0000101000111010001111
31122001110121100102200220121
42311003233200220322033
53112323203330200030
642243515433125411
72422631252414155
oct265035740507217
948043540380817
1012442243600015
113a677a9164129
12148b482259867
136c33b5b69148
143102ca2d93d5
151689b828147a
hexb50ef828e8f

12442243600015 has 16 divisors (see below), whose sum is σ = 15038342928000. Its totient is φ = 9882030052512.

The previous prime is 12442243599991. The next prime is 12442243600019. The reversal of 12442243600015 is 51000634224421.

It is a cyclic number.

It is not a de Polignac number, because 12442243600015 - 25 = 12442243599983 is a prime.

It is a super-2 number, since 2×124422436000152 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442243600019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68226744 + ... + 68408866.

It is an arithmetic number, because the mean of its divisors is an integer number (939896433000).

Almost surely, 212442243600015 is an apocalyptic number.

12442243600015 is a deficient number, since it is larger than the sum of its proper divisors (2596099327985).

12442243600015 is a wasteful number, since it uses less digits than its factorization.

12442243600015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280566.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 12442243600015 its reverse (51000634224421), we get a palindrome (63442877824436).

The spelling of 12442243600015 in words is "twelve trillion, four hundred forty-two billion, two hundred forty-three million, six hundred thousand, fifteen".

Divisors: 1 5 139 695 98299 182123 491495 910615 13663561 25315097 68317805 126575485 17902508777 89512543885 2488448720003 12442243600015