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225213153 = 3116824641
BaseRepresentation
bin11010110110001…
…11101011100001
3120200210000100220
431123013223201
5430123310103
634203033253
75403165054
oct1533075341
9520700326
10225213153
11106143a80
126350b829
1337874529
1421ca6a9b
1514b89c53
hexd6c7ae1

225213153 has 8 divisors (see below), whose sum is σ = 327582816. Its totient is φ = 136492800.

The previous prime is 225213119. The next prime is 225213167. The reversal of 225213153 is 351312522.

It is a happy number.

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

It is not a de Polignac number, because 225213153 - 213 = 225204961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225213193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3412288 + ... + 3412353.

It is an arithmetic number, because the mean of its divisors is an integer number (40947852).

Almost surely, 2225213153 is an apocalyptic number.

It is an amenable number.

225213153 is a deficient number, since it is larger than the sum of its proper divisors (102369663).

225213153 is a wasteful number, since it uses less digits than its factorization.

225213153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824655.

The product of its digits is 1800, while the sum is 24.

The square root of 225213153 is about 15007.1034180484. The cubic root of 225213153 is about 608.4122040647.

Adding to 225213153 its reverse (351312522), we get a palindrome (576525675).

The spelling of 225213153 in words is "two hundred twenty-five million, two hundred thirteen thousand, one hundred fifty-three".

Divisors: 1 3 11 33 6824641 20473923 75071051 225213153