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143101 = 720443
BaseRepresentation
bin100010111011111101
321021022001
4202323331
514034401
63022301
71134130
oct427375
9237261
10143101
1198572
126a991
135019a
143a217
152c601
hex22efd

143101 has 4 divisors (see below), whose sum is σ = 163552. Its totient is φ = 122652.

The previous prime is 143093. The next prime is 143107. The reversal of 143101 is 101341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143101 - 23 = 143093 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 (143107) 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, 10215 + ... + 10228.

It is an arithmetic number, because the mean of its divisors is an integer number (40888).

2143101 is an apocalyptic number.

It is an amenable number.

143101 is a deficient number, since it is larger than the sum of its proper divisors (20451).

143101 is an equidigital number, since it uses as much as digits as its factorization.

143101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20450.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 143101 is about 378.2869281379. The cubic root of 143101 is about 52.3055238765.

Adding to 143101 its reverse (101341), we get a palindrome (244442).

The spelling of 143101 in words is "one hundred forty-three thousand, one hundred one", and thus it is an iban number.

Divisors: 1 7 20443 143101