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144342044 = 22721166949
BaseRepresentation
bin10001001101001…
…11110000011100
3101001121100001122
420212213300130
5243422421134
622153430112
73401613200
oct1046476034
9331540048
10144342044
1174528350
124040b338
1323b9a7c2
1415254b00
15ca1302e
hex89a7c1c

144342044 has 36 divisors (see below), whose sum is σ = 320556600. Its totient is φ = 56236320.

The previous prime is 144342041. The next prime is 144342049. The reversal of 144342044 is 440243441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144342041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31319 + ... + 35630.

It is an arithmetic number, because the mean of its divisors is an integer number (8904350).

Almost surely, 2144342044 is an apocalyptic number.

144342044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144342044 is an abundant number, since it is smaller than the sum of its proper divisors (176214556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144342044 is a wasteful number, since it uses less digits than its factorization.

144342044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66978 (or 66969 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 144342044 is about 12014.2433802550. The cubic root of 144342044 is about 524.5629547937.

Adding to 144342044 its reverse (440243441), we get a palindrome (584585485).

The spelling of 144342044 in words is "one hundred forty-four million, three hundred forty-two thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 66949 133898 267796 468643 736439 937286 1472878 1874572 2945756 3280501 5155073 6561002 10310146 13122004 20620292 36085511 72171022 144342044