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144241044557 = 419344250703
BaseRepresentation
bin1000011001010101101…
…1111010110001001101
3111210022101222021011112
42012111123322301031
54330401201411212
6150132522101405
713264266435461
oct2062533726115
9453271867145
10144241044557
1156199344745
1223b5604a865
13107a940bb0c
146da49aa4a1
153b4320c422
hex21956fac4d

144241044557 has 4 divisors (see below), whose sum is σ = 144585295680. Its totient is φ = 143896793436.

The previous prime is 144241044547. The next prime is 144241044589. The reversal of 144241044557 is 755440142441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 755440142441 = 1522749611883.

It is a cyclic number.

It is not a de Polignac number, because 144241044557 - 216 = 144240979021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144241044517) 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, 172124933 + ... + 172125770.

It is an arithmetic number, because the mean of its divisors is an integer number (36146323920).

Almost surely, 2144241044557 is an apocalyptic number.

It is an amenable number.

144241044557 is a deficient number, since it is larger than the sum of its proper divisors (344251123).

144241044557 is an equidigital number, since it uses as much as digits as its factorization.

144241044557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344251122.

The product of its (nonzero) digits is 358400, while the sum is 41.

Adding to 144241044557 its reverse (755440142441), we get a palindrome (899681186998).

The spelling of 144241044557 in words is "one hundred forty-four billion, two hundred forty-one million, forty-four thousand, five hundred fifty-seven".

Divisors: 1 419 344250703 144241044557