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144402230 = 2572062889
BaseRepresentation
bin10001001101101…
…10011100110110
3101001201101121202
420212312130312
5243431332410
622155012502
73402253520
oct1046663466
9331641552
10144402230
1174569595
124043a132
1323bbc00b
141526ca10
15ca25ca5
hex89b6736

144402230 has 16 divisors (see below), whose sum is σ = 297056160. Its totient is φ = 49509312.

The previous prime is 144402229. The next prime is 144402239. The reversal of 144402230 is 32204441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144402239) 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, 1031375 + ... + 1031514.

It is an arithmetic number, because the mean of its divisors is an integer number (18566010).

Almost surely, 2144402230 is an apocalyptic number.

144402230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144402230 is an abundant number, since it is smaller than the sum of its proper divisors (152653930).

144402230 is a wasteful number, since it uses less digits than its factorization.

144402230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062903.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 144402230 is about 12016.7478961656. The cubic root of 144402230 is about 524.6358533017.

Adding to 144402230 its reverse (32204441), we get a palindrome (176606671).

The spelling of 144402230 in words is "one hundred forty-four million, four hundred two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2062889 4125778 10314445 14440223 20628890 28880446 72201115 144402230