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64969106 = 2291120157
BaseRepresentation
bin1111011111010…
…1100110010010
311112020202212012
43313311212102
5113113002411
610240302522
71416141206
oct367654622
9145222765
1064969106
1133745284
1219911a42
13105c9977
1488b2b06
155a8518b
hex3df5992

64969106 has 8 divisors (see below), whose sum is σ = 100814220. Its totient is φ = 31364368.

The previous prime is 64969103. The next prime is 64969111. The reversal of 64969106 is 60196946.

It can be written as a sum of positive squares in 2 ways, for example, as 63856081 + 1113025 = 7991^2 + 1055^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64969103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560021 + ... + 560136.

Almost surely, 264969106 is an apocalyptic number.

64969106 is a deficient number, since it is larger than the sum of its proper divisors (35845114).

64969106 is a wasteful number, since it uses less digits than its factorization.

64969106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120188.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 64969106 is about 8060.3415560384. The cubic root of 64969106 is about 402.0088650966.

The spelling of 64969106 in words is "sixty-four million, nine hundred sixty-nine thousand, one hundred six".

Divisors: 1 2 29 58 1120157 2240314 32484553 64969106