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144120004 = 22743119701
BaseRepresentation
bin10001001011100…
…01100011000100
3101001012001110221
420211301203010
5243343320004
622144554124
73366666640
oct1045614304
9331161427
10144120004
1174396546
1240322944
1323b20712
14151d7c20
15c9bc354
hex89718c4

144120004 has 24 divisors (see below), whose sum is σ = 294945728. Its totient is φ = 60328800.

The previous prime is 144119951. The next prime is 144120007. The reversal of 144120004 is 400021441.

It is a self number, because there is not a number n which added to its sum of digits gives 144120004.

It is not an unprimeable number, because it can be changed into a prime (144120007) 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 7 ways as a sum of consecutive naturals, for example, 58647 + ... + 61054.

Almost surely, 2144120004 is an apocalyptic number.

144120004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144120004 is an abundant number, since it is smaller than the sum of its proper divisors (150825724).

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

144120004 is a wasteful number, since it uses less digits than its factorization.

144120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119755 (or 119753 counting only the distinct ones).

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

The square root of 144120004 is about 12004.9991253644. Note that the first 3 decimals coincide. The cubic root of 144120004 is about 524.2938400116.

Adding to 144120004 its reverse (400021441), we get a palindrome (544141445).

The spelling of 144120004 in words is "one hundred forty-four million, one hundred twenty thousand, four".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 119701 239402 478804 837907 1675814 3351628 5147143 10294286 20588572 36030001 72060002 144120004