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144422067 = 348140689
BaseRepresentation
bin10001001101110…
…11010010110011
3101001202101211110
420212323102303
5243433001232
622155244403
73402365406
oct1046732263
9331671743
10144422067
1174582489
1240449703
1323bc805a
1415275d3d
15ca2bacc
hex89bb4b3

144422067 has 4 divisors (see below), whose sum is σ = 192562760. Its totient is φ = 96281376.

The previous prime is 144422053. The next prime is 144422099. The reversal of 144422067 is 760224441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760224441 = 3253408147.

It is not a de Polignac number, because 144422067 - 27 = 144421939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144422017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24070342 + ... + 24070347.

It is an arithmetic number, because the mean of its divisors is an integer number (48140690).

Almost surely, 2144422067 is an apocalyptic number.

144422067 is a deficient number, since it is larger than the sum of its proper divisors (48140693).

144422067 is an equidigital number, since it uses as much as digits as its factorization.

144422067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48140692.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 144422067 is about 12017.5732575258. The cubic root of 144422067 is about 524.6598758414.

The spelling of 144422067 in words is "one hundred forty-four million, four hundred twenty-two thousand, sixty-seven".

Divisors: 1 3 48140689 144422067