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455148 = 223247269
BaseRepresentation
bin1101111000111101100
3212010100100
41233013230
5104031043
613431100
73603651
oct1570754
9763310
10455148
11290a61
1219b490
1312c225
14bbc28
158ecd3
hex6f1ec

455148 has 36 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 147936.

The previous prime is 455123. The next prime is 455149. The reversal of 455148 is 841554.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (455149) by changing a digit.

455148 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 11 ways as a sum of consecutive naturals, for example, 1558 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2455148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589680).

455148 is an abundant number, since it is smaller than the sum of its proper divisors (724212).

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

455148 is a wasteful number, since it uses less digits than its factorization.

455148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 321 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 455148 is about 674.6465741409. The cubic root of 455148 is about 76.9220552685.

The spelling of 455148 in words is "four hundred fifty-five thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 47 94 141 188 269 282 423 538 564 807 846 1076 1614 1692 2421 3228 4842 9684 12643 25286 37929 50572 75858 113787 151716 227574 455148