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144311453 = 111317232989
BaseRepresentation
bin10001001101000…
…00010010011101
3101001112210002122
420212200102131
5243420431303
622153032325
73401425046
oct1046402235
9331483078
10144311453
1174507370
12403b56a5
1323b898c0
14152478cd
15ca08e38
hex89a049d

144311453 has 64 divisors (see below), whose sum is σ = 195955200. Its totient is φ = 104079360.

The previous prime is 144311443. The next prime is 144311471. The reversal of 144311453 is 354113441.

It is a happy number.

It is not a de Polignac number, because 144311453 - 26 = 144311389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144311423) 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 63 ways as a sum of consecutive naturals, for example, 1621433 + ... + 1621521.

It is an arithmetic number, because the mean of its divisors is an integer number (3061800).

Almost surely, 2144311453 is an apocalyptic number.

144311453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144311453 is a deficient number, since it is larger than the sum of its proper divisors (51643747).

144311453 is a wasteful number, since it uses less digits than its factorization.

144311453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its digits is 2880, while the sum is 26.

The square root of 144311453 is about 12012.9701989142. The cubic root of 144311453 is about 524.5258945844.

Adding to 144311453 its reverse (354113441), we get a palindrome (498424894).

The spelling of 144311453 in words is "one hundred forty-four million, three hundred eleven thousand, four hundred fifty-three".

Divisors: 1 11 13 17 23 29 89 143 187 221 253 299 319 377 391 493 667 979 1157 1513 2047 2431 2581 3289 4147 4301 5083 5423 6409 7337 8671 11339 12727 16643 19669 22517 26611 28391 33553 34799 43877 55913 59363 70499 95381 124729 147407 216359 292721 369083 382789 452387 482647 570401 652993 771719 1009171 1621477 4976257 6274411 8488909 11100881 13119223 144311453