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144330451 = 2331375471
BaseRepresentation
bin10001001101001…
…00111011010011
3101001120202011021
420212210323103
5243422033301
622153300311
73401534326
oct1046447323
9331522137
10144330451
117451a671
1240404697
1323b95445
14152507bd
15ca0e8a1
hex89a4ed3

144330451 has 16 divisors (see below), whose sum is σ = 159694848. Its totient is φ = 129967200.

The previous prime is 144330437. The next prime is 144330463. The reversal of 144330451 is 154033441.

144330451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144330451 - 213 = 144322259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144339451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23646 + ... + 29116.

It is an arithmetic number, because the mean of its divisors is an integer number (9980928).

Almost surely, 2144330451 is an apocalyptic number.

144330451 is a deficient number, since it is larger than the sum of its proper divisors (15364397).

144330451 is a wasteful number, since it uses less digits than its factorization.

144330451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 144330451 is about 12013.7609015662. The cubic root of 144330451 is about 524.5489107888.

Adding to 144330451 its reverse (154033441), we get a palindrome (298363892).

The spelling of 144330451 in words is "one hundred forty-four million, three hundred thirty thousand, four hundred fifty-one".

Divisors: 1 23 31 37 713 851 1147 5471 26381 125833 169601 202427 3900823 4655821 6275237 144330451