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144471425 = 527825551
BaseRepresentation
bin10001001110001…
…11010110000001
3101001211220112112
420213013112001
5243441041200
622200305105
73402662330
oct1047072601
9331756475
10144471425
117460657a
1240472195
1323c14667
1415289d17
15ca3b535
hex89c7581

144471425 has 12 divisors (see below), whose sum is σ = 204736896. Its totient is φ = 99066000.

The previous prime is 144471419. The next prime is 144471433. The reversal of 144471425 is 524174441.

It is not a de Polignac number, because 144471425 - 24 = 144471409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144471391 and 144471400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412601 + ... + 412950.

It is an arithmetic number, because the mean of its divisors is an integer number (17061408).

Almost surely, 2144471425 is an apocalyptic number.

It is an amenable number.

144471425 is a deficient number, since it is larger than the sum of its proper divisors (60265471).

144471425 is an equidigital number, since it uses as much as digits as its factorization.

144471425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825568 (or 825563 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 144471425 is about 12019.6266580955. The cubic root of 144471425 is about 524.7196386674.

The spelling of 144471425 in words is "one hundred forty-four million, four hundred seventy-one thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 825551 4127755 5778857 20638775 28894285 144471425