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2148453 = 322397107
BaseRepresentation
bin1000001100100001100101
311001011010100
420030201211
51022222303
6114014313
724155466
oct10144145
94034110
102148453
11123818a
12877399
135a2b98
143dcd6d
152c68a3
hex20c865

2148453 has 24 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 1343232.

The previous prime is 2148451. The next prime is 2148457. The reversal of 2148453 is 3548412.

It is not a de Polignac number, because 2148453 - 21 = 2148451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20026 + ... + 20132.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

22148453 is an apocalyptic number.

2148453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2148453 is a deficient number, since it is larger than the sum of its proper divisors (1153755).

2148453 is a wasteful number, since it uses less digits than its factorization.

2148453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2148453 is about 1465.7602123131. The cubic root of 2148453 is about 129.0353247410.

It can be divided in two parts, 2148 and 453, that added together give a square (2601 = 512).

The spelling of 2148453 in words is "two million, one hundred forty-eight thousand, four hundred fifty-three".

Divisors: 1 3 9 23 69 97 107 207 291 321 873 963 2231 2461 6693 7383 10379 20079 22149 31137 93411 238717 716151 2148453