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144787097 = 7137392153
BaseRepresentation
bin10001010000101…
…00011010011001
3101002102221120002
420220110122121
5244031141342
622211142345
73405445550
oct1050243231
9332387502
10144787097
1174801764
12405a49b5
1323cc5250
141532cd97
15ca9ed32
hex8a14699

144787097 has 16 divisors (see below), whose sum is σ = 178523520. Its totient is φ = 114348672.

The previous prime is 144787073. The next prime is 144787141. The reversal of 144787097 is 790787441.

It is a cyclic number.

It is not a de Polignac number, because 144787097 - 210 = 144786073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144787007) 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 15 ways as a sum of consecutive naturals, for example, 66173 + ... + 68325.

It is an arithmetic number, because the mean of its divisors is an integer number (11157720).

Almost surely, 2144787097 is an apocalyptic number.

It is an amenable number.

144787097 is a deficient number, since it is larger than the sum of its proper divisors (33736423).

144787097 is a wasteful number, since it uses less digits than its factorization.

144787097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 144787097 is about 12032.7510154578. The cubic root of 144787097 is about 525.1015338015.

The spelling of 144787097 in words is "one hundred forty-four million, seven hundred eighty-seven thousand, ninety-seven".

Divisors: 1 7 13 91 739 2153 5173 9607 15071 27989 67249 195923 1591067 11137469 20683871 144787097