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144121221430 = 2514412122143
BaseRepresentation
bin1000011000111001001…
…0110101000100110110
3111210000001111121201221
42012032102311010312
54330130013041210
6150113001540554
713261313112064
oct2061622650466
9453001447657
10144121221430
115613774386a
1223b21aa475a
131078a647564
146d92ad9034
153b3793e1da
hex218e4b5136

144121221430 has 8 divisors (see below), whose sum is σ = 259418198592. Its totient is φ = 57648488568.

The previous prime is 144121221427. The next prime is 144121221443. The reversal of 144121221430 is 34122121441.

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

It is a junction number, because it is equal to n+sod(n) for n = 144121221395 and 144121221404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7206061062 + ... + 7206061081.

It is an arithmetic number, because the mean of its divisors is an integer number (32427274824).

Almost surely, 2144121221430 is an apocalyptic number.

144121221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144121221430 is a deficient number, since it is larger than the sum of its proper divisors (115296977162).

144121221430 is a wasteful number, since it uses less digits than its factorization.

144121221430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14412122150.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 144121221430 its reverse (34122121441), we get a palindrome (178243342871).

The spelling of 144121221430 in words is "one hundred forty-four billion, one hundred twenty-one million, two hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 14412122143 28824244286 72060610715 144121221430