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149144 = 23103181
BaseRepresentation
bin100100011010011000
321120120212
4210122120
514233034
63110252
71160552
oct443230
9246525
10149144
11a2066
1272388
1352b68
143c4d2
152e2ce
hex24698

149144 has 16 divisors (see below), whose sum is σ = 283920. Its totient is φ = 73440.

The previous prime is 149143. The next prime is 149153. The reversal of 149144 is 441941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734 + ... + 914.

It is an arithmetic number, because the mean of its divisors is an integer number (17745).

2149144 is an apocalyptic number.

It is an amenable number.

149144 is a deficient number, since it is larger than the sum of its proper divisors (134776).

149144 is a wasteful number, since it uses less digits than its factorization.

149144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 286 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 149144 is about 386.1916622611. The cubic root of 149144 is about 53.0316649512.

The spelling of 149144 in words is "one hundred forty-nine thousand, one hundred forty-four".

Divisors: 1 2 4 8 103 181 206 362 412 724 824 1448 18643 37286 74572 149144