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64944074 = 2132497849
BaseRepresentation
bin1111011110111…
…1011111001010
311112012111112002
43313233133022
5113111202244
610235551002
71416005216
oct367573712
9145174462
1064944074
1133728498
12198bb462
13105bb460
1488a7946
155a7ca4e
hex3def7ca

64944074 has 8 divisors (see below), whose sum is σ = 104909700. Its totient is φ = 29974176.

The previous prime is 64944049. The next prime is 64944127. The reversal of 64944074 is 47044946.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47513449 + 17430625 = 6893^2 + 4175^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 1248899 + ... + 1248950.

Almost surely, 264944074 is an apocalyptic number.

64944074 is a deficient number, since it is larger than the sum of its proper divisors (39965626).

64944074 is a wasteful number, since it uses less digits than its factorization.

64944074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497864.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 64944074 is about 8058.7886186449. The cubic root of 64944074 is about 401.9572283562.

The spelling of 64944074 in words is "sixty-four million, nine hundred forty-four thousand, seventy-four".

Divisors: 1 2 13 26 2497849 4995698 32472037 64944074