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144439055 = 5176312693
BaseRepresentation
bin10001001101111…
…11011100001111
3101001210021010122
420212333130033
5243434022210
622155455155
73402466055
oct1046773417
9331707118
10144439055
1174594222
12404574bb
1323c029c7
141527c1d5
15ca31b55
hex89bf70f

144439055 has 16 divisors (see below), whose sum is σ = 183881664. Its totient is φ = 108541440.

The previous prime is 144439051. The next prime is 144439067. The reversal of 144439055 is 550934441.

It is not a de Polignac number, because 144439055 - 22 = 144439051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144439051) 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 15 ways as a sum of consecutive naturals, for example, 52289 + ... + 54981.

It is an arithmetic number, because the mean of its divisors is an integer number (11492604).

Almost surely, 2144439055 is an apocalyptic number.

144439055 is a deficient number, since it is larger than the sum of its proper divisors (39442609).

144439055 is a wasteful number, since it uses less digits than its factorization.

144439055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 144439055 is about 12018.2800350133. The cubic root of 144439055 is about 524.6804465033.

The spelling of 144439055 in words is "one hundred forty-four million, four hundred thirty-nine thousand, fifty-five".

Divisors: 1 5 17 85 631 2693 3155 10727 13465 45781 53635 228905 1699283 8496415 28887811 144439055