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225393953 = 973796131
BaseRepresentation
bin11010110111100…
…11110100100001
3120201010012101012
431123303310201
5430200101303
634210550305
75404550141
oct1533636441
9521105335
10225393953
111062578a4
1263598395
1337908905
1421d12921
1514bc35d8
hexd6f3d21

225393953 has 8 divisors (see below), whose sum is σ = 228355680. Its totient is φ = 222445440.

The previous prime is 225393919. The next prime is 225393977. The reversal of 225393953 is 359393522.

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 225393953 - 216 = 225328417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225393953.

It is not an unprimeable number, because it can be changed into a prime (225363953) 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, 33698 + ... + 39828.

It is an arithmetic number, because the mean of its divisors is an integer number (28544460).

Almost surely, 2225393953 is an apocalyptic number.

It is an amenable number.

225393953 is a deficient number, since it is larger than the sum of its proper divisors (2961727).

225393953 is an equidigital number, since it uses as much as digits as its factorization.

225393953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607.

The product of its digits is 218700, while the sum is 41.

The square root of 225393953 is about 15013.1260235835. The cubic root of 225393953 is about 608.5749706144.

The spelling of 225393953 in words is "two hundred twenty-five million, three hundred ninety-three thousand, nine hundred fifty-three".

Divisors: 1 97 379 6131 36763 594707 2323649 225393953