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64050643121 = 263247398479
BaseRepresentation
bin111011101001101101…
…110100000010110001
320010022210120210111112
4323221231310002301
52022133431034441
645231403323105
74425143324603
oct735155640261
9203283523445
1064050643121
1125188a11203
12104b6520495
136069a0093a
14315882b173
1519ed17d4eb
hexee9b740b1

64050643121 has 8 divisors (see below), whose sum is σ = 64320833280. Its totient is φ = 63780655392.

The previous prime is 64050643109. The next prime is 64050643141. The reversal of 64050643121 is 12134605046.

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-64050643121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64050643141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 601160 + ... + 699638.

It is an arithmetic number, because the mean of its divisors is an integer number (8040104160).

Almost surely, 264050643121 is an apocalyptic number.

It is an amenable number.

64050643121 is a deficient number, since it is larger than the sum of its proper divisors (270190159).

64050643121 is a wasteful number, since it uses less digits than its factorization.

64050643121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101215.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 64050643121 in words is "sixty-four billion, fifty million, six hundred forty-three thousand, one hundred twenty-one".

Divisors: 1 263 2473 98479 650399 25899977 243538567 64050643121