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144033001 = 722939449
BaseRepresentation
bin10001001010111…
…00010011101001
3101001000122010121
420211130103221
5243333024001
622143043241
73366155200
oct1045342351
9331018117
10144033001
1174337142
12402a0521
1323abcc38
14151b4237
15c9a16a1
hex895c4e9

144033001 has 6 divisors (see below), whose sum is σ = 167548650. Its totient is φ = 123456816.

The previous prime is 144032981. The next prime is 144033023. The reversal of 144033001 is 100330441.

It can be written as a sum of positive squares in only one way, i.e., 142778601 + 1254400 = 11949^2 + 1120^2 .

It is not a de Polignac number, because 144033001 - 217 = 143901929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144033301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1469676 + ... + 1469773.

It is an arithmetic number, because the mean of its divisors is an integer number (27924775).

Almost surely, 2144033001 is an apocalyptic number.

It is an amenable number.

144033001 is a deficient number, since it is larger than the sum of its proper divisors (23515649).

144033001 is an equidigital number, since it uses as much as digits as its factorization.

144033001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939463 (or 2939456 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 144033001 is about 12001.3749628949. The cubic root of 144033001 is about 524.1883161014.

Adding to 144033001 its reverse (100330441), we get a palindrome (244363442).

The spelling of 144033001 in words is "one hundred forty-four million, thirty-three thousand, one".

Divisors: 1 7 49 2939449 20576143 144033001