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145148 = 22131277
BaseRepresentation
bin100011011011111100
321101002212
4203123330
514121043
63035552
71143113
oct433374
9241085
10145148
119a063
126bbb8
13510b3
143ac7a
152d018
hex236fc

145148 has 12 divisors (see below), whose sum is σ = 256872. Its totient is φ = 71760.

The previous prime is 145139. The next prime is 145177. The reversal of 145148 is 841541.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145148.

It is an unprimeable number.

145148 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386 + ... + 662.

It is an arithmetic number, because the mean of its divisors is an integer number (21406).

2145148 is an apocalyptic number.

It is an amenable number.

145148 is a deficient number, since it is larger than the sum of its proper divisors (111724).

145148 is a wasteful number, since it uses less digits than its factorization.

145148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 640, while the sum is 23.

The square root of 145148 is about 380.9829392506. The cubic root of 145148 is about 52.5537469230.

Adding to 145148 its reverse (841541), we get a palindrome (986689).

The spelling of 145148 in words is "one hundred forty-five thousand, one hundred forty-eight".

Divisors: 1 2 4 131 262 277 524 554 1108 36287 72574 145148