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144218387839 = 4712724161231
BaseRepresentation
bin1000011001010000010…
…1011111010101111111
3111210020211100011222211
42012110011133111333
54330324401402324
6150130352321251
713263603033061
oct2062405372577
9453224304884
10144218387839
115618757a389
1223b4a543227
13107a4808386
146da198d731
153b41234294
hex219415f57f

144218387839 has 8 divisors (see below), whose sum is σ = 148446609408. Its totient is φ = 140038489080.

The previous prime is 144218387689. The next prime is 144218387861. The reversal of 144218387839 is 938783812441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144218387839 - 237 = 6779434367 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 (144218384839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12074647 + ... + 12086584.

It is an arithmetic number, because the mean of its divisors is an integer number (18555826176).

Almost surely, 2144218387839 is an apocalyptic number.

144218387839 is a deficient number, since it is larger than the sum of its proper divisors (4228221569).

144218387839 is a wasteful number, since it uses less digits than its factorization.

144218387839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24161405.

The product of its digits is 9289728, while the sum is 58.

The spelling of 144218387839 in words is "one hundred forty-four billion, two hundred eighteen million, three hundred eighty-seven thousand, eight hundred thirty-nine".

Divisors: 1 47 127 5969 24161231 1135577857 3068476337 144218387839