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144401330 = 2519760007
BaseRepresentation
bin10001001101101…
…10001110110010
3101001201100101102
420212312032302
5243431320310
622155004402
73402251063
oct1046661662
9331640342
10144401330
1174568947
1240439702
1323bbb798
141526c56a
15ca258a5
hex89b63b2

144401330 has 16 divisors (see below), whose sum is σ = 273602880. Its totient is φ = 54720432.

The previous prime is 144401329. The next prime is 144401333. The reversal of 144401330 is 33104441.

It is a happy number.

144401330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144401333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379814 + ... + 380193.

It is an arithmetic number, because the mean of its divisors is an integer number (17100180).

Almost surely, 2144401330 is an apocalyptic number.

144401330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144401330 is a deficient number, since it is larger than the sum of its proper divisors (129201550).

144401330 is a wasteful number, since it uses less digits than its factorization.

144401330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760033.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 144401330 is about 12016.7104483715. The cubic root of 144401330 is about 524.6347633526.

Adding to 144401330 its reverse (33104441), we get a palindrome (177505771).

The spelling of 144401330 in words is "one hundred forty-four million, four hundred one thousand, three hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 760007 1520014 3800035 7600070 14440133 28880266 72200665 144401330