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144024001 = 11210912
BaseRepresentation
bin10001001010110…
…10000111000001
3101001000011210021
420211122013001
5243332232001
622142533441
73366120022
oct1045320701
9331004707
10144024001
1174330400
1240297281
1323ab8b04
14151b0c49
15c99dba1
hex895a1c1

144024001 has 9 divisors (see below), whose sum is σ = 158452609. Its totient is φ = 130810900.

The previous prime is 144023993. The next prime is 144024059. The reversal of 144024001 is 100420441.

The square root of 144024001 is 12001.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 144024001 - 23 = 144023993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144024301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131466 + ... + 132556.

Almost surely, 2144024001 is an apocalyptic number.

144024001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144024001 is the 12001-st square number.

144024001 is the 6001-st centered octagonal number.

It is an amenable number.

144024001 is a deficient number, since it is larger than the sum of its proper divisors (14428608).

144024001 is an frugal number, since it uses more digits than its factorization.

144024001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The cubic root of 144024001 is about 524.1773977862.

Multiplying 144024001 by its sum of digits (16), we get a square (2304384016 = 480042).

Adding to 144024001 its reverse (100420441), we get a palindrome (244444442).

The spelling of 144024001 in words is "one hundred forty-four million, twenty-four thousand, one".

Divisors: 1 11 121 1091 12001 132011 1190281 13093091 144024001