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144307161 = 3229659839
BaseRepresentation
bin10001001100111…
…11001111011001
3101001112120012200
420212133033121
5243420312121
622153000413
73401406405
oct1046371731
9331476180
10144307161
1174504119
12403b3109
1323b8796b
1415246105
15ca07a26
hex899f3d9

144307161 has 24 divisors (see below), whose sum is σ = 216216000. Its totient is φ = 92635872.

The previous prime is 144307153. The next prime is 144307199. The reversal of 144307161 is 161703441.

It is a happy number.

It is not a de Polignac number, because 144307161 - 23 = 144307153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144307561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171580 + ... + 172418.

It is an arithmetic number, because the mean of its divisors is an integer number (9009000).

Almost surely, 2144307161 is an apocalyptic number.

It is an amenable number.

144307161 is a deficient number, since it is larger than the sum of its proper divisors (71908839).

144307161 is a wasteful number, since it uses less digits than its factorization.

144307161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 144307161 is about 12012.7915573359. The cubic root of 144307161 is about 524.5206945179.

The spelling of 144307161 in words is "one hundred forty-four million, three hundred seven thousand, one hundred sixty-one".

Divisors: 1 3 9 29 87 261 659 839 1977 2517 5931 7551 19111 24331 57333 72993 171999 218979 552901 1658703 4976109 16034129 48102387 144307161