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144000004 = 22372693617
BaseRepresentation
bin10001001010101…
…00010000000100
3101000221221212111
420211110100010
5243331000004
622142230404
73365660041
oct1045242004
9330857774
10144000004
1174314375
1240285404
1323aaac05
14151a61c8
15c996a04
hex8954404

144000004 has 24 divisors (see below), whose sum is σ = 259844760. Its totient is φ = 69774336.

The previous prime is 144000001. The next prime is 144000023. The reversal of 144000004 is 400000441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 144000000 = 2^2 + 12000^2 .

It is not an unprimeable number, because it can be changed into a prime (144000001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38004 + ... + 41620.

It is an arithmetic number, because the mean of its divisors is an integer number (10826865).

Almost surely, 2144000004 is an apocalyptic number.

It is an amenable number.

144000004 is a deficient number, since it is larger than the sum of its proper divisors (115844756).

144000004 is a wasteful number, since it uses less digits than its factorization.

144000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927 (or 3925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 144000004 is about 12000.0001666667. Note that the first 3 decimals coincide. The cubic root of 144000004 is about 524.1482836950.

Adding to 144000004 its reverse (400000441), we get a palindrome (544000445).

The spelling of 144000004 in words is "one hundred forty-four million, four", and thus it is an aban number.

Divisors: 1 2 4 37 74 148 269 538 1076 3617 7234 9953 14468 19906 39812 133829 267658 535316 972973 1945946 3891892 36000001 72000002 144000004