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144364 = 221117193
BaseRepresentation
bin100011001111101100
321100000211
4203033230
514104424
63032204
71140613
oct431754
9240024
10144364
1199510
126b664
135092c
143a87a
152cb94
hex233ec

144364 has 24 divisors (see below), whose sum is σ = 293328. Its totient is φ = 61440.

The previous prime is 144349. The next prime is 144379. The reversal of 144364 is 463441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144349) and next prime (144379).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652 + ... + 844.

It is an arithmetic number, because the mean of its divisors is an integer number (12222).

2144364 is an apocalyptic number.

It is an amenable number.

144364 is an abundant number, since it is smaller than the sum of its proper divisors (148964).

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

144364 is a wasteful number, since it uses less digits than its factorization.

144364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 223 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 144364 is about 379.9526286263. The cubic root of 144364 is about 52.4589550695.

The spelling of 144364 in words is "one hundred forty-four thousand, three hundred sixty-four".

Divisors: 1 2 4 11 17 22 34 44 68 187 193 374 386 748 772 2123 3281 4246 6562 8492 13124 36091 72182 144364