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144221102 = 285784143
BaseRepresentation
bin10001001100010…
…10001110101110
3101001101012011022
420212022032232
5243410033402
622151054142
73400600454
oct1046121656
9331335138
10144221102
11744554a3
1240371352
1323b5773c
14152229d4
15c9dc2a2
hex898a3ae

144221102 has 8 divisors (see below), whose sum is σ = 216586656. Its totient is φ = 72025552.

The previous prime is 144221101. The next prime is 144221107. The reversal of 144221102 is 201122441.

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 (144221101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40358 + ... + 43785.

It is an arithmetic number, because the mean of its divisors is an integer number (27073332).

Almost surely, 2144221102 is an apocalyptic number.

144221102 is a deficient number, since it is larger than the sum of its proper divisors (72365554).

144221102 is an equidigital number, since it uses as much as digits as its factorization.

144221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85002.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 144221102 is about 12009.2090497251. The cubic root of 144221102 is about 524.4164060860.

Adding to 144221102 its reverse (201122441), we get a palindrome (345343543).

The spelling of 144221102 in words is "one hundred forty-four million, two hundred twenty-one thousand, one hundred two".

Divisors: 1 2 857 1714 84143 168286 72110551 144221102