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144013423 = 601239623
BaseRepresentation
bin10001001010101…
…11100001101111
3101000222122021111
420211113201233
5243331412143
622142412451
73366044131
oct1045274157
9330878244
10144013423
1174323464
1240291127
1323ab4058
14151ab051
15c99a99d
hex895786f

144013423 has 4 divisors (see below), whose sum is σ = 144253648. Its totient is φ = 143773200.

The previous prime is 144013403. The next prime is 144013433. The reversal of 144013423 is 324310441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144013423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144013394 and 144013403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144013403) 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, 119211 + ... + 120412.

It is an arithmetic number, because the mean of its divisors is an integer number (36063412).

Almost surely, 2144013423 is an apocalyptic number.

144013423 is a deficient number, since it is larger than the sum of its proper divisors (240225).

144013423 is an equidigital number, since it uses as much as digits as its factorization.

144013423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240224.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 144013423 is about 12000.5592786336. The cubic root of 144013423 is about 524.1645645449.

Adding to 144013423 its reverse (324310441), we get a palindrome (468323864).

The spelling of 144013423 in words is "one hundred forty-four million, thirteen thousand, four hundred twenty-three".

Divisors: 1 601 239623 144013423