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144311452 = 2275747659
BaseRepresentation
bin10001001101000…
…00010010011100
3101001112210002121
420212200102130
5243420431302
622153032324
73401425045
oct1046402234
9331483077
10144311452
117450736a
12403b56a4
1323b898bc
14152478cc
15ca08e37
hex89a049c

144311452 has 12 divisors (see below), whose sum is σ = 252883960. Its totient is φ = 72058896.

The previous prime is 144311443. The next prime is 144311471. The reversal of 144311452 is 254113441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20802 + ... + 26857.

Almost surely, 2144311452 is an apocalyptic number.

It is an amenable number.

144311452 is a deficient number, since it is larger than the sum of its proper divisors (108572508).

144311452 is a wasteful number, since it uses less digits than its factorization.

144311452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48420 (or 48418 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 144311452 is about 12012.9701572925. The cubic root of 144311452 is about 524.5258933728.

Adding to 144311452 its reverse (254113441), we get a palindrome (398424893).

The spelling of 144311452 in words is "one hundred forty-four million, three hundred eleven thousand, four hundred fifty-two".

Divisors: 1 2 4 757 1514 3028 47659 95318 190636 36077863 72155726 144311452