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144486545 = 5721931039
BaseRepresentation
bin10001001110010…
…11000010010001
3101001212200021112
420213023002101
5243442032140
622200503105
73403054400
oct1047130221
9331780245
10144486545
1174616975
124047aa95
1323c1b4c8
1415291637
15ca40c65
hex89cb091

144486545 has 24 divisors (see below), whose sum is σ = 212313600. Its totient is φ = 93858912.

The previous prime is 144486541. The next prime is 144486571. The reversal of 144486545 is 545684441.

It is not a de Polignac number, because 144486545 - 22 = 144486541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144486541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10865 + ... + 20174.

It is an arithmetic number, because the mean of its divisors is an integer number (8846400).

Almost surely, 2144486545 is an apocalyptic number.

It is an amenable number.

144486545 is a deficient number, since it is larger than the sum of its proper divisors (67827055).

144486545 is a wasteful number, since it uses less digits than its factorization.

144486545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31077 (or 31070 counting only the distinct ones).

The product of its digits is 307200, while the sum is 41.

The square root of 144486545 is about 12020.2556129227. The cubic root of 144486545 is about 524.7379432888.

The spelling of 144486545 in words is "one hundred forty-four million, four hundred eighty-six thousand, five hundred forty-five".

Divisors: 1 5 7 19 35 49 95 133 245 665 931 4655 31039 155195 217273 589741 1086365 1520911 2948705 4128187 7604555 20640935 28897309 144486545