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213025452 = 22317752121
BaseRepresentation
bin11001011001010…
…00001010101100
3112211211210222120
430230220022230
5414013303302
633045512540
75164454313
oct1454501254
9484753876
10213025452
11aa27a1a2
125b412750
1335197c83
142041327a
1513a7d9bc
hexcb282ac

213025452 has 12 divisors (see below), whose sum is σ = 497059416. Its totient is φ = 71008480.

The previous prime is 213025447. The next prime is 213025513. The reversal of 213025452 is 254520312.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8876049 + ... + 8876072.

It is an arithmetic number, because the mean of its divisors is an integer number (41421618).

Almost surely, 2213025452 is an apocalyptic number.

It is an amenable number.

213025452 is an abundant number, since it is smaller than the sum of its proper divisors (284033964).

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

213025452 is a wasteful number, since it uses less digits than its factorization.

213025452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17752128 (or 17752126 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 213025452 is about 14595.3914644315. The cubic root of 213025452 is about 597.2330484689.

Adding to 213025452 its reverse (254520312), we get a palindrome (467545764).

The spelling of 213025452 in words is "two hundred thirteen million, twenty-five thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 17752121 35504242 53256363 71008484 106512726 213025452