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144147 = 348049
BaseRepresentation
bin100011001100010011
321022201210
4203030103
514103042
63031203
71140153
oct431423
9238653
10144147
1199333
126b503
13507c3
143a763
152ca9c
hex23313

144147 has 4 divisors (see below), whose sum is σ = 192200. Its totient is φ = 96096.

The previous prime is 144139. The next prime is 144161. The reversal of 144147 is 741441.

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

It is not a de Polignac number, because 144147 - 23 = 144139 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (144167) 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, 24022 + ... + 24027.

It is an arithmetic number, because the mean of its divisors is an integer number (48050).

2144147 is an apocalyptic number.

144147 is a deficient number, since it is larger than the sum of its proper divisors (48053).

144147 is an equidigital number, since it uses as much as digits as its factorization.

144147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48052.

The product of its digits is 448, while the sum is 21.

The square root of 144147 is about 379.6669593209. Note that the first 3 decimals coincide. The cubic root of 144147 is about 52.4326574197.

Adding to 144147 its reverse (741441), we get a palindrome (885588).

The spelling of 144147 in words is "one hundred forty-four thousand, one hundred forty-seven", and thus it is an iban number.

Divisors: 1 3 48049 144147