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144532001 = 791829519
BaseRepresentation
bin10001001110101…
…10001000100001
3101001221222122002
420213112020201
5244000011001
622201453345
73403334045
oct1047261041
9331858562
10144532001
1174648039
12404a1255
1323c360c3
14152a4025
15ca4e46b
hex89d6221

144532001 has 4 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 142702404.

The previous prime is 144531991. The next prime is 144532019. The reversal of 144532001 is 100235441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100235441 = 337329717.

It is a cyclic number.

It is not a de Polignac number, because 144532001 - 214 = 144515617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144532021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914681 + ... + 914838.

It is an arithmetic number, because the mean of its divisors is an integer number (36590400).

Almost surely, 2144532001 is an apocalyptic number.

It is an amenable number.

144532001 is a deficient number, since it is larger than the sum of its proper divisors (1829599).

144532001 is an equidigital number, since it uses as much as digits as its factorization.

144532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829598.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 144532001 is about 12022.1462726087. The cubic root of 144532001 is about 524.7929656832.

Adding to 144532001 its reverse (100235441), we get a palindrome (244767442).

The spelling of 144532001 in words is "one hundred forty-four million, five hundred thirty-two thousand, one".

Divisors: 1 79 1829519 144532001