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65975045 = 517776177
BaseRepresentation
bin1111101110101…
…1001100000101
311121010212202012
43323223030011
5113342200140
610314024005
71430531033
oct373531405
9147125665
1065975045
1134272034
121a118005
131088c7b6
148a95553
155bd3265
hex3eeb305

65975045 has 8 divisors (see below), whose sum is σ = 83827224. Its totient is φ = 49675264.

The previous prime is 65975009. The next prime is 65975047. The reversal of 65975045 is 54057956.

It can be written as a sum of positive squares in 4 ways, for example, as 37736449 + 28238596 = 6143^2 + 5314^2 .

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 65975045 - 214 = 65958661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65974993 and 65975011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65975047) 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, 388004 + ... + 388173.

It is an arithmetic number, because the mean of its divisors is an integer number (10478403).

Almost surely, 265975045 is an apocalyptic number.

It is an amenable number.

65975045 is a deficient number, since it is larger than the sum of its proper divisors (17852179).

65975045 is a wasteful number, since it uses less digits than its factorization.

65975045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776199.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 65975045 is about 8122.5023853490. The cubic root of 65975045 is about 404.0730617299.

The spelling of 65975045 in words is "sixty-five million, nine hundred seventy-five thousand, forty-five".

Divisors: 1 5 17 85 776177 3880885 13195009 65975045