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225145535 = 51719139409
BaseRepresentation
bin11010110101101…
…11001010111111
3120200122120121112
431122313022333
5430114124120
634201352235
75402463656
oct1532671277
9520576545
10225145535
111060a819a
126349867b
133784c814
1421c8a19d
1514b74bc5
hexd6b72bf

225145535 has 16 divisors (see below), whose sum is σ = 301125600. Its totient is φ = 160598016.

The previous prime is 225145499. The next prime is 225145541. The reversal of 225145535 is 535541522.

It is a cyclic number.

It is not a de Polignac number, because 225145535 - 28 = 225145279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68090 + ... + 71319.

It is an arithmetic number, because the mean of its divisors is an integer number (18820350).

Almost surely, 2225145535 is an apocalyptic number.

225145535 is a deficient number, since it is larger than the sum of its proper divisors (75980065).

225145535 is a wasteful number, since it uses less digits than its factorization.

225145535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139450.

The product of its digits is 30000, while the sum is 32.

The square root of 225145535 is about 15004.8503824597. The cubic root of 225145535 is about 608.3513080738.

The spelling of 225145535 in words is "two hundred twenty-five million, one hundred forty-five thousand, five hundred thirty-five".

Divisors: 1 5 17 19 85 95 323 1615 139409 697045 2369953 2648771 11849765 13243855 45029107 225145535