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144285174 = 23211728713
BaseRepresentation
bin10001001100110…
…01110111110110
3101001111110001100
420212121313312
5243414111144
622152310530
73401255325
oct1046316766
9331443040
10144285174
1174499650
12403a2446
1323b7a957
141523c0bc
15ca01269
hex8999df6

144285174 has 24 divisors (see below), whose sum is σ = 341038152. Its totient is φ = 43722720.

The previous prime is 144285173. The next prime is 144285199. The reversal of 144285174 is 471582441.

It is a happy number.

It is a super-2 number, since 2×1442851742 = 41636422872420552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364159 + ... + 364554.

It is an arithmetic number, because the mean of its divisors is an integer number (14209923).

Almost surely, 2144285174 is an apocalyptic number.

144285174 is an abundant number, since it is smaller than the sum of its proper divisors (196752978).

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

144285174 is a wasteful number, since it uses less digits than its factorization.

144285174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728732 (or 728729 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 144285174 is about 12011.8763729902. The cubic root of 144285174 is about 524.4940540698.

The spelling of 144285174 in words is "one hundred forty-four million, two hundred eighty-five thousand, one hundred seventy-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 728713 1457426 2186139 4372278 6558417 8015843 13116834 16031686 24047529 48095058 72142587 144285174