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144285886 = 2193796997
BaseRepresentation
bin10001001100110…
…10000010111110
3101001111111000201
420212122002332
5243414122021
622152314114
73401260363
oct1046320276
9331444021
10144285886
117449a138
12403a293a
1323b7b084
141523c46a
15ca01591
hex899a0be

144285886 has 8 divisors (see below), whose sum is σ = 227819880. Its totient is φ = 68345928.

The previous prime is 144285881. The next prime is 144285899. The reversal of 144285886 is 688582441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285881) 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 3 ways as a sum of consecutive naturals, for example, 1898461 + ... + 1898536.

It is an arithmetic number, because the mean of its divisors is an integer number (28477485).

Almost surely, 2144285886 is an apocalyptic number.

144285886 is a deficient number, since it is larger than the sum of its proper divisors (83533994).

144285886 is a wasteful number, since it uses less digits than its factorization.

144285886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797018.

The product of its digits is 491520, while the sum is 46.

The square root of 144285886 is about 12011.9060102883. The cubic root of 144285886 is about 524.4949168038.

The spelling of 144285886 in words is "one hundred forty-four million, two hundred eighty-five thousand, eight hundred eighty-six".

Divisors: 1 2 19 38 3796997 7593994 72142943 144285886