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142231323013141 = 1217116870437973
BaseRepresentation
bin100000010101101111001111…
…011110111111000000010101
3200122121011220110011000021111
4200111233033132333000111
5122120304222142410031
61222300100123015021
741646605526666145
oct4025571736770025
9618534813130244
10142231323013141
1141356a6897264a
1213b5147236a471
136149482790a2b
14271a065c98925
151169b6a7a11b1
hex815bcf7bf015

142231323013141 has 4 divisors (see below), whose sum is σ = 142348193452332. Its totient is φ = 142114452573952.

The previous prime is 142231323013133. The next prime is 142231323013151. The reversal of 142231323013141 is 141310323132241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17643780202500 + 124587542810641 = 4200450^2 + 11161879^2 .

It is a cyclic number.

It is not a de Polignac number, because 142231323013141 - 23 = 142231323013133 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 (142231323013121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58435217770 + ... + 58435220203.

It is an arithmetic number, because the mean of its divisors is an integer number (35587048363083).

Almost surely, 2142231323013141 is an apocalyptic number.

It is an amenable number.

142231323013141 is a deficient number, since it is larger than the sum of its proper divisors (116870439191).

142231323013141 is a wasteful number, since it uses less digits than its factorization.

142231323013141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116870439190.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 142231323013141 its reverse (141310323132241), we get a palindrome (283541646145382).

The spelling of 142231323013141 in words is "one hundred forty-two trillion, two hundred thirty-one billion, three hundred twenty-three million, thirteen thousand, one hundred forty-one".

Divisors: 1 1217 116870437973 142231323013141