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225143051 = 7257125149
BaseRepresentation
bin11010110101101…
…10100100001011
3120200122110012112
431122312210023
5430114034201
634201332535
75402453510
oct1532664413
9520573175
10225143051
111060a6341
126349714b
133784b653
1421c89307
1514b740bb
hexd6b690b

225143051 has 8 divisors (see below), whose sum is σ = 258309600. Its totient is φ = 192227328.

The previous prime is 225143011. The next prime is 225143057. The reversal of 225143051 is 150341522.

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 225143051 - 218 = 224880907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225143057) 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, 60776 + ... + 64373.

It is an arithmetic number, because the mean of its divisors is an integer number (32288700).

Almost surely, 2225143051 is an apocalyptic number.

225143051 is a deficient number, since it is larger than the sum of its proper divisors (33166549).

225143051 is a wasteful number, since it uses less digits than its factorization.

225143051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125413.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 225143051 is about 15004.7676089968. The cubic root of 225143051 is about 608.3490707799.

Adding to 225143051 its reverse (150341522), we get a palindrome (375484573).

The spelling of 225143051 in words is "two hundred twenty-five million, one hundred forty-three thousand, fifty-one".

Divisors: 1 7 257 1799 125149 876043 32163293 225143051