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223425297 = 342758337
BaseRepresentation
bin11010101000100…
…11001100010001
3120120102011220000
431110103030101
5424144102142
634100440213
75352040464
oct1524231421
9516364800
10223425297
11105132807
12629a9069
1337399824
142195d2db
151493514c
hexd513311

223425297 has 10 divisors (see below), whose sum is σ = 333758898. Its totient is φ = 148950144.

The previous prime is 223425283. The next prime is 223425299. The reversal of 223425297 is 792524322.

223425297 is a `hidden beast` number, since 22 + 342 + 5 + 297 = 666.

It can be written as a sum of positive squares in only one way, i.e., 171714816 + 51710481 = 13104^2 + 7191^2 .

It is not a de Polignac number, because 223425297 - 24 = 223425281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223425299) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1379088 + ... + 1379249.

Almost surely, 2223425297 is an apocalyptic number.

223425297 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

223425297 is a deficient number, since it is larger than the sum of its proper divisors (110333601).

223425297 is an equidigital number, since it uses as much as digits as its factorization.

223425297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758349 (or 2758340 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 223425297 is about 14947.4177368534. The cubic root of 223425297 is about 606.7979636054.

The spelling of 223425297 in words is "two hundred twenty-three million, four hundred twenty-five thousand, two hundred ninety-seven".

Divisors: 1 3 9 27 81 2758337 8275011 24825033 74475099 223425297