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144121430 = 2514412143
BaseRepresentation
bin10001001011100…
…01111001010110
3101001012010102202
420211301321112
5243343341210
622145004502
73400004045
oct1045617126
9331163382
10144121430
1174397622
1240323732
1323b2126b
14151d855c
15c9bc9a5
hex8971e56

144121430 has 8 divisors (see below), whose sum is σ = 259418592. Its totient is φ = 57648568.

The previous prime is 144121357. The next prime is 144121433. The reversal of 144121430 is 34121441.

144121430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121433) 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, 7206062 + ... + 7206081.

It is an arithmetic number, because the mean of its divisors is an integer number (32427324).

Almost surely, 2144121430 is an apocalyptic number.

144121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144121430 is a deficient number, since it is larger than the sum of its proper divisors (115297162).

144121430 is a wasteful number, since it uses less digits than its factorization.

144121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412150.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 144121430 is about 12005.0585171418. The cubic root of 144121430 is about 524.2955692200.

Adding to 144121430 its reverse (34121441), we get a palindrome (178242871).

The spelling of 144121430 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 14412143 28824286 72060715 144121430