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144466147 = 730236827
BaseRepresentation
bin10001001110001…
…10000011100011
3101001211122022001
420213012003203
5243440404042
622200224431
73402641050
oct1047060343
9331748261
10144466147
1174602611
124046b117
1323c12137
1415288027
15ca39bb7
hex89c60e3

144466147 has 8 divisors (see below), whose sum is σ = 165182976. Its totient is φ = 123769032.

The previous prime is 144466141. The next prime is 144466159. The reversal of 144466147 is 741664441.

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 144466147 - 219 = 143941859 is a prime.

It is a super-3 number, since 3×1444661473 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (144466141) 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, 17748 + ... + 24574.

It is an arithmetic number, because the mean of its divisors is an integer number (20647872).

Almost surely, 2144466147 is an apocalyptic number.

144466147 is a deficient number, since it is larger than the sum of its proper divisors (20716829).

144466147 is an equidigital number, since it uses as much as digits as its factorization.

144466147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857.

The product of its digits is 64512, while the sum is 37.

The square root of 144466147 is about 12019.4070985220. The cubic root of 144466147 is about 524.7132486980.

The spelling of 144466147 in words is "one hundred forty-four million, four hundred sixty-six thousand, one hundred forty-seven".

Divisors: 1 7 3023 6827 21161 47789 20638021 144466147