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144752342858 = 272376171429
BaseRepresentation
bin1000011011001111101…
…0010111011101001010
3111211122001001220120122
42012303322113131022
54332423044432413
6150255345023242
713313045420204
oct2066372273512
9454561056518
10144752342858
1156430a18722
1224079324b22
131085b31b6a6
147012863774
153b73058108
hex21b3e9774a

144752342858 has 4 divisors (see below), whose sum is σ = 217128514290. Its totient is φ = 72376171428.

The previous prime is 144752342857. The next prime is 144752342869. The reversal of 144752342858 is 858243257441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858243257441 = 7350611167581.

It can be written as a sum of positive squares in only one way, i.e., 125966076889 + 18786265969 = 354917^2 + 137063^2 .

It is not an unprimeable number, because it can be changed into a prime (144752342851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36188085713 + ... + 36188085716.

Almost surely, 2144752342858 is an apocalyptic number.

144752342858 is a deficient number, since it is larger than the sum of its proper divisors (72376171432).

144752342858 is an equidigital number, since it uses as much as digits as its factorization.

144752342858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72376171431.

The product of its digits is 8601600, while the sum is 53.

The spelling of 144752342858 in words is "one hundred forty-four billion, seven hundred fifty-two million, three hundred forty-two thousand, eight hundred fifty-eight".

Divisors: 1 2 72376171429 144752342858