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144137793 = 3532393793
BaseRepresentation
bin10001001011101…
…01111001000001
3101001012221212210
420211311321001
5243344402133
622145212333
73400102542
oct1045657101
9331187783
10144137793
11743a8948
12403310a9
1323b28847
14152004c9
15c9c2763
hex8975e41

144137793 has 16 divisors (see below), whose sum is σ = 196680960. Its totient is φ = 93859584.

The previous prime is 144137789. The next prime is 144137809. The reversal of 144137793 is 397731441.

It is not a de Polignac number, because 144137793 - 22 = 144137789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144137723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36105 + ... + 39897.

It is an arithmetic number, because the mean of its divisors is an integer number (12292560).

Almost surely, 2144137793 is an apocalyptic number.

It is an amenable number.

144137793 is a deficient number, since it is larger than the sum of its proper divisors (52543167).

144137793 is a wasteful number, since it uses less digits than its factorization.

144137793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088.

The product of its digits is 63504, while the sum is 39.

The square root of 144137793 is about 12005.7400021823. The cubic root of 144137793 is about 524.3154106452.

The spelling of 144137793 in words is "one hundred forty-four million, one hundred thirty-seven thousand, seven hundred ninety-three".

Divisors: 1 3 53 159 239 717 3793 11379 12667 38001 201029 603087 906527 2719581 48045931 144137793