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144312433 = 659218987
BaseRepresentation
bin10001001101000…
…00100001110001
3101001112211102221
420212200201301
5243420444213
622153041041
73401430646
oct1046404161
9331484387
10144312433
1174508081
12403b6181
1323b8a195
1415247dcd
15ca0938d
hex89a0871

144312433 has 4 divisors (see below), whose sum is σ = 144532080. Its totient is φ = 144092788.

The previous prime is 144312431. The next prime is 144312449. The reversal of 144312433 is 334213441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144312433 - 21 = 144312431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144312398 and 144312407.

It is not an unprimeable number, because it can be changed into a prime (144312431) 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, 108835 + ... + 110152.

It is an arithmetic number, because the mean of its divisors is an integer number (36133020).

Almost surely, 2144312433 is an apocalyptic number.

It is an amenable number.

144312433 is a deficient number, since it is larger than the sum of its proper divisors (219647).

144312433 is an equidigital number, since it uses as much as digits as its factorization.

144312433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219646.

The product of its digits is 3456, while the sum is 25.

The square root of 144312433 is about 12013.0109880912. The cubic root of 144312433 is about 524.5270819104.

Adding to 144312433 its reverse (334213441), we get a palindrome (478525874).

The spelling of 144312433 in words is "one hundred forty-four million, three hundred twelve thousand, four hundred thirty-three".

Divisors: 1 659 218987 144312433