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30225253 = 1071631733
BaseRepresentation
bin111001101001…
…1001101100101
32002212121020211
41303103031211
530214202003
62555455421
7514624162
oct163231545
962777224
1030225253
1116074753
12a157571
136353686
14402b069
1529c096d
hex1cd3365

30225253 has 8 divisors (see below), whose sum is σ = 30712608. Its totient is φ = 29741904.

The previous prime is 30225233. The next prime is 30225271. The reversal of 30225253 is 35252203.

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

It is a cyclic number.

It is not a de Polignac number, because 30225253 - 221 = 28128101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30225233) 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, 16575 + ... + 18307.

It is an arithmetic number, because the mean of its divisors is an integer number (3839076).

Almost surely, 230225253 is an apocalyptic number.

It is an amenable number.

30225253 is a deficient number, since it is larger than the sum of its proper divisors (487355).

30225253 is a wasteful number, since it uses less digits than its factorization.

30225253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 30225253 is about 5497.7498124233. The cubic root of 30225253 is about 311.4989938880.

Adding to 30225253 its reverse (35252203), we get a palindrome (65477456).

The spelling of 30225253 in words is "thirty million, two hundred twenty-five thousand, two hundred fifty-three".

Divisors: 1 107 163 1733 17441 185431 282479 30225253