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144343031221 = 719670129959
BaseRepresentation
bin1000011001101110000…
…0111101110110110101
3111210120111212201120101
42012123200331312311
54331103303444341
6150151004034101
713266645343624
oct2063340756665
9453514781511
10144343031221
1156240972844
1223b84232931
13107c459995c
146db43576bb
153b4c155831
hex219b83ddb5

144343031221 has 8 divisors (see below), whose sum is σ = 144570182400. Its totient is φ = 144115954800.

The previous prime is 144343031219. The next prime is 144343031251. The reversal of 144343031221 is 122130343441.

It is a happy number.

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 144343031221 - 21 = 144343031219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144343031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144343031201) 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, 4803040 + ... + 4832998.

It is an arithmetic number, because the mean of its divisors is an integer number (18071272800).

Almost surely, 2144343031221 is an apocalyptic number.

It is an amenable number.

144343031221 is a deficient number, since it is larger than the sum of its proper divisors (227151179).

144343031221 is an equidigital number, since it uses as much as digits as its factorization.

144343031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37379.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 144343031221 its reverse (122130343441), we get a palindrome (266473374662).

The spelling of 144343031221 in words is "one hundred forty-four billion, three hundred forty-three million, thirty-one thousand, two hundred twenty-one".

Divisors: 1 719 6701 29959 4818019 21540521 200755259 144343031221