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144242004 = 22313191757
BaseRepresentation
bin10001001100011…
…11010101010100
3101001102020211110
420212033111110
5243411221004
622151335020
73401015424
oct1046172524
9331366743
10144242004
117446a175
1240381470
1323b640ca
141522a484
15c9e3589
hex898f554

144242004 has 24 divisors (see below), whose sum is σ = 339137568. Its totient is φ = 47713120.

The previous prime is 144241973. The next prime is 144242009. The reversal of 144242004 is 400242441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144242009) 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, 44307 + ... + 47450.

It is an arithmetic number, because the mean of its divisors is an integer number (14130732).

Almost surely, 2144242004 is an apocalyptic number.

It is an amenable number.

144242004 is an abundant number, since it is smaller than the sum of its proper divisors (194895564).

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

144242004 is a wasteful number, since it uses less digits than its factorization.

144242004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91895 (or 91893 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 144242004 is about 12010.0792670157. The cubic root of 144242004 is about 524.4417394620.

Adding to 144242004 its reverse (400242441), we get a palindrome (544484445).

The spelling of 144242004 in words is "one hundred forty-four million, two hundred forty-two thousand, four".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 1572 91757 183514 275271 367028 550542 1101084 12020167 24040334 36060501 48080668 72121002 144242004