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144342941 = 635922699
BaseRepresentation
bin10001001101001…
…11111110011101
3101001121101021212
420212213332131
5243422433231
622153434205
73401615621
oct1046477635
9331541255
10144342941
1174528a96
124040b965
1323b9b032
1415255181
15ca1342b
hex89a7f9d

144342941 has 4 divisors (see below), whose sum is σ = 144372000. Its totient is φ = 144313884.

The previous prime is 144342881. The next prime is 144342949. The reversal of 144342941 is 149243441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144342941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144342898 and 144342907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144342949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4991 + ... + 17708.

It is an arithmetic number, because the mean of its divisors is an integer number (36093000).

Almost surely, 2144342941 is an apocalyptic number.

It is an amenable number.

144342941 is a deficient number, since it is larger than the sum of its proper divisors (29059).

144342941 is an equidigital number, since it uses as much as digits as its factorization.

144342941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29058.

The product of its digits is 13824, while the sum is 32.

The square root of 144342941 is about 12014.2807108874. The cubic root of 144342941 is about 524.5640414071.

The spelling of 144342941 in words is "one hundred forty-four million, three hundred forty-two thousand, nine hundred forty-one".

Divisors: 1 6359 22699 144342941