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144804 = 223111097
BaseRepresentation
bin100011010110100100
321100122010
4203112210
514113204
63034220
71142112
oct432644
9240563
10144804
1199880
126b970
1350baa
143aab2
152cd89
hex235a4

144804 has 24 divisors (see below), whose sum is σ = 368928. Its totient is φ = 43840.

The previous prime is 144791. The next prime is 144817. The reversal of 144804 is 408441.

It is an interprime number because it is at equal distance from previous prime (144791) and next prime (144817).

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144804.

It is an unprimeable number.

144804 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (15372).

2144804 is an apocalyptic number.

It is an amenable number.

144804 is an abundant number, since it is smaller than the sum of its proper divisors (224124).

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

144804 is a wasteful number, since it uses less digits than its factorization.

144804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 144804 is about 380.5312076558. The cubic root of 144804 is about 52.5121967127.

The spelling of 144804 in words is "one hundred forty-four thousand, eight hundred four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1097 2194 3291 4388 6582 12067 13164 24134 36201 48268 72402 144804