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141881 = 532677
BaseRepresentation
bin100010101000111001
321012121212
4202220321
514020011
63012505
71130435
oct425071
9235555
10141881
1197663
126a135
134c76c
14399c5
152c08b
hex22a39

141881 has 4 divisors (see below), whose sum is σ = 144612. Its totient is φ = 139152.

The previous prime is 141871. The next prime is 141907. The reversal of 141881 is 188141.

141881 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 188141 = 474003.

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 99856 = 205^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 141881 - 214 = 125497 is a prime.

It is a super-2 number, since 2×1418812 = 40260436322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 141881.

It is not an unprimeable number, because it can be changed into a prime (141811) 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, 1286 + ... + 1391.

It is an arithmetic number, because the mean of its divisors is an integer number (36153).

2141881 is an apocalyptic number.

It is an amenable number.

141881 is a deficient number, since it is larger than the sum of its proper divisors (2731).

141881 is an equidigital number, since it uses as much as digits as its factorization.

141881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730.

The product of its digits is 256, while the sum is 23.

The square root of 141881 is about 376.6709439285. The cubic root of 141881 is about 52.1564567910.

The spelling of 141881 in words is "one hundred forty-one thousand, eight hundred eighty-one".

Divisors: 1 53 2677 141881