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144123441 = 3711837517
BaseRepresentation
bin10001001011100…
…10011000110001
3101001012020012020
420211302120301
5243343422231
622145022053
73400012650
oct1045623061
9331166166
10144123441
1174399090
1240324929
1323b22157
14151d9197
15c9bd396
hex8972631

144123441 has 32 divisors (see below), whose sum is σ = 242500608. Its totient is φ = 73957440.

The previous prime is 144123439. The next prime is 144123457. The reversal of 144123441 is 144321441.

It is not a de Polignac number, because 144123441 - 21 = 144123439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144123431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15415 + ... + 22931.

It is an arithmetic number, because the mean of its divisors is an integer number (7578144).

Almost surely, 2144123441 is an apocalyptic number.

144123441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144123441 is a deficient number, since it is larger than the sum of its proper divisors (98377167).

144123441 is a wasteful number, since it uses less digits than its factorization.

144123441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621.

The product of its digits is 1536, while the sum is 24.

The square root of 144123441 is about 12005.1422732094. The cubic root of 144123441 is about 524.2980077967.

Adding to 144123441 its reverse (144321441), we get a palindrome (288444882).

The spelling of 144123441 in words is "one hundred forty-four million, one hundred twenty-three thousand, four hundred forty-one".

Divisors: 1 3 7 11 21 33 77 83 231 249 581 913 1743 2739 6391 7517 19173 22551 52619 82687 157857 248061 578809 623911 1736427 1871733 4367377 6863021 13102131 20589063 48041147 144123441