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144134081 = 7132576163
BaseRepresentation
bin10001001011101…
…00111111000001
3101001012202210022
420211310333001
5243344242311
622145143225
73400055660
oct1045647701
9331182708
10144134081
11743a6083
124032ab15
1323b26c50
14151dcdd7
15c9c15db
hex8974fc1

144134081 has 16 divisors (see below), whose sum is σ = 178114944. Its totient is φ = 113577984.

The previous prime is 144134071. The next prime is 144134087. The reversal of 144134081 is 180431441.

144134081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144134081 - 26 = 144134017 is a prime.

It is a super-2 number, since 2×1441340812 = 41549266611429122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144134081.

It is not an unprimeable number, because it can be changed into a prime (144134087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20306 + ... + 26468.

It is an arithmetic number, because the mean of its divisors is an integer number (11132184).

Almost surely, 2144134081 is an apocalyptic number.

It is an amenable number.

144134081 is a deficient number, since it is larger than the sum of its proper divisors (33980863).

144134081 is a wasteful number, since it uses less digits than its factorization.

144134081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 144134081 is about 12005.5854084672. The cubic root of 144134081 is about 524.3109096848.

The spelling of 144134081 in words is "one hundred forty-four million, one hundred thirty-four thousand, eighty-one".

Divisors: 1 7 13 91 257 1799 3341 6163 23387 43141 80119 560833 1583891 11087237 20590583 144134081