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144861085 = 5191151687
BaseRepresentation
bin10001010001001…
…10011110011101
3101002120201001101
420220212132131
5244041023320
622212513101
73406204345
oct1050463635
9332521041
10144861085
1174852306
124061b791
132401cb25
141534bd25
15cab6c0a
hex8a2679d

144861085 has 8 divisors (see below), whose sum is σ = 174744576. Its totient is φ = 115281360.

The previous prime is 144861083. The next prime is 144861089. The reversal of 144861085 is 580168441.

144861085 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 not a de Polignac number, because 144861085 - 21 = 144861083 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 (144861083) 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, 74889 + ... + 76798.

It is an arithmetic number, because the mean of its divisors is an integer number (21843072).

Almost surely, 2144861085 is an apocalyptic number.

It is an amenable number.

144861085 is a deficient number, since it is larger than the sum of its proper divisors (29883491).

144861085 is a wasteful number, since it uses less digits than its factorization.

144861085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151883.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 144861085 is about 12035.8250651960. The cubic root of 144861085 is about 525.1909630327.

The spelling of 144861085 in words is "one hundred forty-four million, eight hundred sixty-one thousand, eighty-five".

Divisors: 1 5 191 955 151687 758435 28972217 144861085