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144443200420 = 2257222160021
BaseRepresentation
bin1000011010000101111…
…1000101001110100100
3111210211111100211212201
42012201133011032210
54331304424403140
6150204543024244
713302302642251
oct2064137051644
9453744324781
10144443200420
115629246a402
1223bb189b084
131080c26c47c
146dc3790428
153b55d4049a
hex21a17c53a4

144443200420 has 12 divisors (see below), whose sum is σ = 303330720924. Its totient is φ = 57777280160.

The previous prime is 144443200403. The next prime is 144443200457. The reversal of 144443200420 is 24002344441.

It can be written as a sum of positive squares in 2 ways, for example, as 94073477796 + 50369722624 = 306714^2 + 224432^2 .

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, 3611079991 + ... + 3611080030.

It is an arithmetic number, because the mean of its divisors is an integer number (25277560077).

Almost surely, 2144443200420 is an apocalyptic number.

144443200420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144443200420 is an abundant number, since it is smaller than the sum of its proper divisors (158887520504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144443200420 is a wasteful number, since it uses less digits than its factorization.

144443200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222160030 (or 7222160028 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 144443200420 its reverse (24002344441), we get a palindrome (168445544861).

The spelling of 144443200420 in words is "one hundred forty-four billion, four hundred forty-three million, two hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7222160021 14444320042 28888640084 36110800105 72221600210 144443200420