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7142267268181 = 531731523511463
BaseRepresentation
bin110011111101111000001…
…0011011010110001010101
3221021210102212221000101001
41213323300103122301111
51414004330410040211
623105040130503301
71335004020043633
oct147736023326125
927253385830331
107142267268181
112304022746641
12974276a34b31
133ca688b42216
141a998aa12353
15c5bc04c8ac1
hex67ef04dac55

7142267268181 has 16 divisors (see below), whose sum is σ = 7323910793856. Its totient is φ = 6962413546816.

The previous prime is 7142267268179. The next prime is 7142267268217. The reversal of 7142267268181 is 1818627622417.

It is a happy number.

7142267268181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7142267268181 - 21 = 7142267268179 is a prime.

It is a super-2 number, since 2×71422672681812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142267268281) 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, 13708656 + ... + 14220118.

It is an arithmetic number, because the mean of its divisors is an integer number (457744424616).

Almost surely, 27142267268181 is an apocalyptic number.

It is an amenable number.

7142267268181 is a deficient number, since it is larger than the sum of its proper divisors (181643525675).

7142267268181 is a wasteful number, since it uses less digits than its factorization.

7142267268181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513212.

The product of its digits is 3612672, while the sum is 55.

The spelling of 7142267268181 in words is "seven trillion, one hundred forty-two billion, two hundred sixty-seven million, two hundred sixty-eight thousand, one hundred eighty-one".

Divisors: 1 53 173 1523 9169 80719 263479 511463 13964387 27107539 88483099 778958149 4689604247 41284781897 134759759777 7142267268181