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144012408 = 2339761861
BaseRepresentation
bin10001001010101…
…11010001111000
3101000222120212220
420211113101320
5243331344113
622142404040
73366041151
oct1045272170
9330876786
10144012408
1174322721
1240290620
1323ab3757
14151aa928
15c99a523
hex8957478

144012408 has 32 divisors (see below), whose sum is σ = 363748560. Its totient is φ = 47508480.

The previous prime is 144012403. The next prime is 144012439. The reversal of 144012408 is 804210441.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144012403) 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 7 ways as a sum of consecutive naturals, for example, 28603 + ... + 33258.

Almost surely, 2144012408 is an apocalyptic number.

It is an amenable number.

144012408 is an abundant number, since it is smaller than the sum of its proper divisors (219736152).

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

144012408 is a wasteful number, since it uses less digits than its factorization.

144012408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61967 (or 61963 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 144012408 is about 12000.5169888634. The cubic root of 144012408 is about 524.1633331127.

Adding to 144012408 its reverse (804210441), we get a palindrome (948222849).

The spelling of 144012408 in words is "one hundred forty-four million, twelve thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 97 194 291 388 582 776 1164 2328 61861 123722 185583 247444 371166 494888 742332 1484664 6000517 12001034 18001551 24002068 36003102 48004136 72006204 144012408