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65448101 = 1011494349
BaseRepresentation
bin1111100110101…
…0100010100101
311120011002220202
43321222202211
5113223314401
610254440245
71423204535
oct371524245
9146132822
1065448101
1133a42144
1219b03085
13107369b4
1489994c5
155b2c06b
hex3e6a8a5

65448101 has 8 divisors (see below), whose sum is σ = 66555000. Its totient is φ = 64350400.

The previous prime is 65448067. The next prime is 65448109. The reversal of 65448101 is 10184456.

It is a Cunningham number, because it is equal to 80902+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1464100 + 63984001 = 1210^2 + 7999^2 .

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-65448101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65448109) 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, 12875 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (8319375).

Almost surely, 265448101 is an apocalyptic number.

It is an amenable number.

65448101 is a deficient number, since it is larger than the sum of its proper divisors (1106899).

65448101 is a wasteful number, since it uses less digits than its factorization.

65448101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 65448101 is about 8090.0000618047. Note that the first 4 decimals coincide. The cubic root of 65448101 is about 402.9944049943.

The spelling of 65448101 in words is "sixty-five million, four hundred forty-eight thousand, one hundred one".

Divisors: 1 101 149 4349 15049 439249 648001 65448101