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20112141 = 37957721
BaseRepresentation
bin100110010111…
…0001100001101
31101211210200010
41030232030031
520122042031
61555023433
7332643660
oct114561415
941753603
1020112141
1110397605
12689ab79
13422249a
1429576d7
151b74246
hex132e30d

20112141 has 8 divisors (see below), whose sum is σ = 30647104. Its totient is φ = 11492640.

The previous prime is 20112133. The next prime is 20112151. The reversal of 20112141 is 14121102.

It is a happy number.

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

It is not a de Polignac number, because 20112141 - 23 = 20112133 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 (20112151) 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, 478840 + ... + 478881.

It is an arithmetic number, because the mean of its divisors is an integer number (3830888).

Almost surely, 220112141 is an apocalyptic number.

20112141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20112141 is a deficient number, since it is larger than the sum of its proper divisors (10534963).

20112141 is an equidigital number, since it uses as much as digits as its factorization.

20112141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957731.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 20112141 is about 4484.6561741119. The cubic root of 20112141 is about 271.9481455721.

Adding to 20112141 its reverse (14121102), we get a palindrome (34233243).

The spelling of 20112141 in words is "twenty million, one hundred twelve thousand, one hundred forty-one".

Divisors: 1 3 7 21 957721 2873163 6704047 20112141