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144511357 = 257562301
BaseRepresentation
bin10001001110100…
…01000101111101
3101001220221022111
420213101011331
5243443330412
622201214021
73403216624
oct1047210575
9331827274
10144511357
1174633581
1240491311
1323c298a3
141529a6bb
15ca482a7
hex89d117d

144511357 has 4 divisors (see below), whose sum is σ = 145073916. Its totient is φ = 143948800.

The previous prime is 144511349. The next prime is 144511363. The reversal of 144511357 is 753115441.

144511357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125753796 + 18757561 = 11214^2 + 4331^2 .

It is a cyclic number.

It is not a de Polignac number, because 144511357 - 23 = 144511349 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144511327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280894 + ... + 281407.

It is an arithmetic number, because the mean of its divisors is an integer number (36268479).

Almost surely, 2144511357 is an apocalyptic number.

It is an amenable number.

144511357 is a deficient number, since it is larger than the sum of its proper divisors (562559).

144511357 is an equidigital number, since it uses as much as digits as its factorization.

144511357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562558.

The product of its digits is 8400, while the sum is 31.

The square root of 144511357 is about 12021.2876598142. The cubic root of 144511357 is about 524.7679785022.

Adding to 144511357 its reverse (753115441), we get a palindrome (897626798).

The spelling of 144511357 in words is "one hundred forty-four million, five hundred eleven thousand, three hundred fifty-seven".

Divisors: 1 257 562301 144511357