Base | Representation |
---|---|
bin | 10001001110001… |
… | …11011101011101 |
3 | 101001211221012011 |
4 | 20213013131131 |
5 | 243441100101 |
6 | 22200311221 |
7 | 3402663610 |
oct | 1047073535 |
9 | 331757164 |
10 | 144471901 |
11 | 74606972 |
12 | 40472511 |
13 | 23c14942 |
14 | 1528a177 |
15 | ca3b751 |
hex | 89c775d |
144471901 has 16 divisors (see below), whose sum is σ = 172873728. Its totient is φ = 118047600.
The previous prime is 144471869. The next prime is 144471913. The reversal of 144471901 is 109174441.
It is a cyclic number.
It is not a de Polignac number, because 144471901 - 25 = 144471869 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 (144471931) 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, 51936 + ... + 54646.
It is an arithmetic number, because the mean of its divisors is an integer number (10804608).
Almost surely, 2144471901 is an apocalyptic number.
It is an amenable number.
144471901 is a deficient number, since it is larger than the sum of its proper divisors (28401827).
144471901 is a wasteful number, since it uses less digits than its factorization.
144471901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3072.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 144471901 is about 12019.6464590270. The cubic root of 144471901 is about 524.7202149435.
The spelling of 144471901 in words is "one hundred forty-four million, four hundred seventy-one thousand, nine hundred one".
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