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253206230 = 2525320623
BaseRepresentation
bin11110001011110…
…01111011010110
3122122110012122112
433011321323112
51004310044410
641043031022
76163134404
oct1705717326
9578405575
10253206230
1111aa23652
127096b472
13405c5b94
14258b2474
1517369105
hexf179ed6

253206230 has 8 divisors (see below), whose sum is σ = 455771232. Its totient is φ = 101282488.

The previous prime is 253206193. The next prime is 253206253. The reversal of 253206230 is 32602352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2532062302 = 128226789821625800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253206196 and 253206205.

It is a congruent number.

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, 12660302 + ... + 12660321.

It is an arithmetic number, because the mean of its divisors is an integer number (56971404).

Almost surely, 2253206230 is an apocalyptic number.

253206230 is a deficient number, since it is larger than the sum of its proper divisors (202565002).

253206230 is a wasteful number, since it uses less digits than its factorization.

253206230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25320630.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 253206230 is about 15912.4551845402. The cubic root of 253206230 is about 632.6421579472.

Adding to 253206230 its reverse (32602352), we get a palindrome (285808582).

The spelling of 253206230 in words is "two hundred fifty-three million, two hundred six thousand, two hundred thirty".

Divisors: 1 2 5 10 25320623 50641246 126603115 253206230