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144425033 = 229630677
BaseRepresentation
bin10001001101111…
…00000001001001
3101001202112220022
420212330001021
5243433100113
622155310225
73402410144
oct1046740111
9331675808
10144425033
1174584735
124044b375
1323bc94cc
141527705b
15ca2c908
hex89bc049

144425033 has 4 divisors (see below), whose sum is σ = 145055940. Its totient is φ = 143794128.

The previous prime is 144424997. The next prime is 144425059. The reversal of 144425033 is 330524441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55160329 + 89264704 = 7427^2 + 9448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144425033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144424993 and 144425011.

It is not an unprimeable number, because it can be changed into a prime (144425833) 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, 315110 + ... + 315567.

It is an arithmetic number, because the mean of its divisors is an integer number (36263985).

Almost surely, 2144425033 is an apocalyptic number.

It is an amenable number.

144425033 is a deficient number, since it is larger than the sum of its proper divisors (630907).

144425033 is an equidigital number, since it uses as much as digits as its factorization.

144425033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630906.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 144425033 is about 12017.6966595101. The cubic root of 144425033 is about 524.6634674683.

Adding to 144425033 its reverse (330524441), we get a palindrome (474949474).

The spelling of 144425033 in words is "one hundred forty-four million, four hundred twenty-five thousand, thirty-three".

Divisors: 1 229 630677 144425033