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144307071 = 3219843901
BaseRepresentation
bin10001001100111…
…11001101111111
3101001112120002100
420212133031333
5243420311241
622153000143
73401406216
oct1046371577
9331476070
10144307071
1174504047
12403b3053
1323b878cc
141524607d
15ca079b6
hex899f37f

144307071 has 12 divisors (see below), whose sum is σ = 219414520. Its totient is φ = 91141200.

The previous prime is 144307069. The next prime is 144307073. The reversal of 144307071 is 170703441.

It is an interprime number because it is at equal distance from previous prime (144307069) and next prime (144307073).

It is not a de Polignac number, because 144307071 - 21 = 144307069 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 (144307073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421780 + ... + 422121.

Almost surely, 2144307071 is an apocalyptic number.

144307071 is a deficient number, since it is larger than the sum of its proper divisors (75107449).

144307071 is a wasteful number, since it uses less digits than its factorization.

144307071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843926 (or 843923 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 144307071 is about 12012.7878113284. The cubic root of 144307071 is about 524.5205854753.

The spelling of 144307071 in words is "one hundred forty-four million, three hundred seven thousand, seventy-one".

Divisors: 1 3 9 19 57 171 843901 2531703 7595109 16034119 48102357 144307071