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144311451 = 3379126923
BaseRepresentation
bin10001001101000…
…00010010011011
3101001112210002120
420212200102123
5243420431301
622153032323
73401425044
oct1046402233
9331483076
10144311451
1174507369
12403b56a3
1323b898bb
14152478cb
15ca08e36
hex89a049b

144311451 has 8 divisors (see below), whose sum is σ = 192924480. Its totient is φ = 95953032.

The previous prime is 144311443. The next prime is 144311471. The reversal of 144311451 is 154113441.

It is a happy number.

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

It is not a de Polignac number, because 144311451 - 23 = 144311443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144311471) 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 7 ways as a sum of consecutive naturals, for example, 62325 + ... + 64598.

It is an arithmetic number, because the mean of its divisors is an integer number (24115560).

Almost surely, 2144311451 is an apocalyptic number.

144311451 is a deficient number, since it is larger than the sum of its proper divisors (48613029).

144311451 is a wasteful number, since it uses less digits than its factorization.

144311451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127305.

The product of its digits is 960, while the sum is 24.

The square root of 144311451 is about 12012.9701156708. The cubic root of 144311451 is about 524.5258921613.

Adding to 144311451 its reverse (154113441), we get a palindrome (298424892).

The spelling of 144311451 in words is "one hundred forty-four million, three hundred eleven thousand, four hundred fifty-one".

Divisors: 1 3 379 1137 126923 380769 48103817 144311451