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144401042 = 279639067
BaseRepresentation
bin10001001101101…
…10001010010010
3101001201022222202
420212312022102
5243431313132
622155003202
73402250202
oct1046661222
9331638882
10144401042
1174568705
1240439502
1323bbb606
141526c402
15ca25762
hex89b6292

144401042 has 8 divisors (see below), whose sum is σ = 216652656. Its totient is φ = 72183492.

The previous prime is 144401041. The next prime is 144401071. The reversal of 144401042 is 240104441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144401041) 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, 11393 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (27081582).

Almost surely, 2144401042 is an apocalyptic number.

144401042 is a deficient number, since it is larger than the sum of its proper divisors (72251614).

144401042 is an equidigital number, since it uses as much as digits as its factorization.

144401042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144401042 is about 12016.6984650527. The cubic root of 144401042 is about 524.6344145679.

Adding to 144401042 its reverse (240104441), we get a palindrome (384505483).

The spelling of 144401042 in words is "one hundred forty-four million, four hundred one thousand, forty-two".

Divisors: 1 2 7963 9067 15926 18134 72200521 144401042