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144012 = 223111091
BaseRepresentation
bin100011001010001100
321022112210
4203022030
514102022
63030420
71136601
oct431214
9238483
10144012
1199220
126b410
135071b
143a6a8
152ca0c
hex2328c

144012 has 24 divisors (see below), whose sum is σ = 366912. Its totient is φ = 43600.

The previous prime is 143999. The next prime is 144013. The reversal of 144012 is 210441.

It is a super-2 number, since 2×1440122 = 41478912288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144012.

It is not an unprimeable number, because it can be changed into a prime (144013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414 + ... + 677.

It is an arithmetic number, because the mean of its divisors is an integer number (15288).

2144012 is an apocalyptic number.

144012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144012 is an abundant number, since it is smaller than the sum of its proper divisors (222900).

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

144012 is a wasteful number, since it uses less digits than its factorization.

144012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 144012 is about 379.4891302791. The cubic root of 144012 is about 52.4162838112.

Adding to 144012 its reverse (210441), we get a palindrome (354453).

The spelling of 144012 in words is "one hundred forty-four thousand, twelve", and thus it is an iban number.

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1091 2182 3273 4364 6546 12001 13092 24002 36003 48004 72006 144012