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20140141 = 717316631
BaseRepresentation
bin100110011010…
…1000001101101
31101220020002011
41030311001231
520123441031
61555401221
7333121420
oct114650155
941806064
1020140141
111040664a
1268b3211
134232158
1429639b7
151b7c6b1
hex133506d

20140141 has 8 divisors (see below), whose sum is σ = 23151744. Its totient is φ = 17162160.

The previous prime is 20140097. The next prime is 20140151. The reversal of 20140141 is 14104102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20140141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7105 + ... + 9526.

It is an arithmetic number, because the mean of its divisors is an integer number (2893968).

Almost surely, 220140141 is an apocalyptic number.

It is an amenable number.

20140141 is a deficient number, since it is larger than the sum of its proper divisors (3011603).

20140141 is a wasteful number, since it uses less digits than its factorization.

20140141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16811.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20140141 is about 4487.7768438281. The cubic root of 20140141 is about 272.0742885681.

Adding to 20140141 its reverse (14104102), we get a palindrome (34244243).

The spelling of 20140141 in words is "twenty million, one hundred forty thousand, one hundred forty-one".

Divisors: 1 7 173 1211 16631 116417 2877163 20140141