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144301985 = 547614051
BaseRepresentation
bin10001001100111…
…01111110100001
3101001112022002222
420212131332201
5243420130420
622152520425
73401355332
oct1046357641
9331468088
10144301985
1174500243
12403b0115
1323b854b9
1415244289
15ca06225
hex899dfa1

144301985 has 8 divisors (see below), whose sum is σ = 176846976. Its totient is φ = 112985200.

The previous prime is 144301951. The next prime is 144301991. The reversal of 144301985 is 589103441.

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

It is not a de Polignac number, because 144301985 - 26 = 144301921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306791 + ... + 307260.

It is an arithmetic number, because the mean of its divisors is an integer number (22105872).

Almost surely, 2144301985 is an apocalyptic number.

It is an amenable number.

144301985 is a deficient number, since it is larger than the sum of its proper divisors (32544991).

144301985 is an equidigital number, since it uses as much as digits as its factorization.

144301985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614103.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 144301985 is about 12012.5761183853. The cubic root of 144301985 is about 524.5144232847.

The spelling of 144301985 in words is "one hundred forty-four million, three hundred one thousand, nine hundred eighty-five".

Divisors: 1 5 47 235 614051 3070255 28860397 144301985