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64412451245 = 5124331036153
BaseRepresentation
bin111011111111010010…
…000000000110101101
320011021000101112221102
4323333102000012231
52023404041414440
645331330212445
74440125542022
oct737722000655
9204230345842
1064412451245
1125354170a8a
1210597724125
1360c695c69c
1431908cd549
151a1eceab15
hexeff4801ad

64412451245 has 8 divisors (see below), whose sum is σ = 77301233016. Its totient is φ = 51525766656.

The previous prime is 64412451179. The next prime is 64412451253. The reversal of 64412451245 is 54215421446.

It can be written as a sum of positive squares in 4 ways, for example, as 336135556 + 64076315689 = 18334^2 + 253133^2 .

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 64412451245 - 28 = 64412450989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64412451199 and 64412451208.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 455912 + ... + 580241.

It is an arithmetic number, because the mean of its divisors is an integer number (9662654127).

Almost surely, 264412451245 is an apocalyptic number.

It is an amenable number.

64412451245 is a deficient number, since it is larger than the sum of its proper divisors (12888781771).

64412451245 is a wasteful number, since it uses less digits than its factorization.

64412451245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048591.

The product of its digits is 153600, while the sum is 38.

The spelling of 64412451245 in words is "sixty-four billion, four hundred twelve million, four hundred fifty-one thousand, two hundred forty-five".

Divisors: 1 5 12433 62165 1036153 5180765 12882490249 64412451245