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144421204 = 22194314409
BaseRepresentation
bin10001001101110…
…11000101010100
3101001202100122111
420212323011110
5243432434304
622155240404
73402363034
oct1046730524
9331670574
10144421204
1174581874
1240449104
1323bc7845
14152758c4
15ca2b704
hex89bb154

144421204 has 24 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 68235840.

The previous prime is 144421187. The next prime is 144421231. The reversal of 144421204 is 402124441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30552 + ... + 34960.

It is an arithmetic number, because the mean of its divisors is an integer number (11113200).

Almost surely, 2144421204 is an apocalyptic number.

It is an amenable number.

144421204 is a deficient number, since it is larger than the sum of its proper divisors (122295596).

144421204 is a wasteful number, since it uses less digits than its factorization.

144421204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 144421204 is about 12017.5373517206. The cubic root of 144421204 is about 524.6588307971.

Adding to 144421204 its reverse (402124441), we get a palindrome (546545645).

The spelling of 144421204 in words is "one hundred forty-four million, four hundred twenty-one thousand, two hundred four".

Divisors: 1 2 4 19 38 76 431 862 1724 4409 8189 8818 16378 17636 32756 83771 167542 335084 1900279 3800558 7601116 36105301 72210602 144421204