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225024401 = 7178717989
BaseRepresentation
bin11010110100110…
…01100110010001
3120200102102110002
431122121212101
5430101240101
634155015345
75401450550
oct1532314621
9520372402
10225024401
11106025188
126343a555
1337809644
1421c57d97
1514b4dd6b
hexd699991

225024401 has 8 divisors (see below), whose sum is σ = 257328960. Its totient is φ = 192759408.

The previous prime is 225024389. The next prime is 225024413. The reversal of 225024401 is 104420522.

It is a happy number.

225024401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225024389) and next prime (225024413).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225024401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225024901) 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, 3515 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (32166120).

Almost surely, 2225024401 is an apocalyptic number.

It is an amenable number.

225024401 is a deficient number, since it is larger than the sum of its proper divisors (32304559).

225024401 is a wasteful number, since it uses less digits than its factorization.

225024401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19783.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 225024401 is about 15000.8133446157. The cubic root of 225024401 is about 608.2421856975.

Adding to 225024401 its reverse (104420522), we get a palindrome (329444923).

The spelling of 225024401 in words is "two hundred twenty-five million, twenty-four thousand, four hundred one".

Divisors: 1 7 1787 12509 17989 125923 32146343 225024401