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149388 = 22359211
BaseRepresentation
bin100100011110001100
321120220220
4210132030
514240023
63111340
71161351
oct443614
9246826
10149388
11a2268
1272550
1352cc5
143c628
152e3e3
hex2478c

149388 has 24 divisors (see below), whose sum is σ = 356160. Its totient is φ = 48720.

The previous prime is 149381. The next prime is 149393. The reversal of 149388 is 883941.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (149381) 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, 603 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (14840).

2149388 is an apocalyptic number.

It is an amenable number.

149388 is an abundant number, since it is smaller than the sum of its proper divisors (206772).

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

149388 is a wasteful number, since it uses less digits than its factorization.

149388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 275 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 149388 is about 386.5074384795. The cubic root of 149388 is about 53.0605691784.

The spelling of 149388 in words is "one hundred forty-nine thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 59 118 177 211 236 354 422 633 708 844 1266 2532 12449 24898 37347 49796 74694 149388