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144256427 = 767307583
BaseRepresentation
bin10001001100100…
…10110110101011
3101001102222121122
420212102312223
5243412201202
622151525455
73401105450
oct1046226653
9331388548
10144256427
1174479a97
124038988b
1323b6a843
1415231827
15c9e79a2
hex8992dab

144256427 has 8 divisors (see below), whose sum is σ = 167325696. Its totient is φ = 121802472.

The previous prime is 144256421. The next prime is 144256439. The reversal of 144256427 is 724652441.

It is a happy number.

144256427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144256427 - 210 = 144255403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144256421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153323 + ... + 154260.

It is an arithmetic number, because the mean of its divisors is an integer number (20915712).

Almost surely, 2144256427 is an apocalyptic number.

144256427 is a deficient number, since it is larger than the sum of its proper divisors (23069269).

144256427 is an equidigital number, since it uses as much as digits as its factorization.

144256427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307657.

The product of its digits is 53760, while the sum is 35.

The square root of 144256427 is about 12010.6797059950. The cubic root of 144256427 is about 524.4592188159.

The spelling of 144256427 in words is "one hundred forty-four million, two hundred fifty-six thousand, four hundred twenty-seven".

Divisors: 1 7 67 469 307583 2153081 20608061 144256427