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68465079573 = 31189151317487
BaseRepresentation
bin111111110000110101…
…100011010100010101
320112201110010101212220
4333300311203110111
52110204030021243
651241420132553
74642425400662
oct776065432425
9215643111786
1068465079573
11270438306a0
1211328997159
1365c1449907
143456c22a69
151baa9b9783
hexff0d63515

68465079573 has 64 divisors (see below), whose sum is σ = 101900021760. Its totient is φ = 40544064000.

The previous prime is 68465079563. The next prime is 68465079589. The reversal of 68465079573 is 37597056486.

It is not a de Polignac number, because 68465079573 - 214 = 68465063189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68465079563) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140585136 + ... + 140585622.

It is an arithmetic number, because the mean of its divisors is an integer number (1592187840).

Almost surely, 268465079573 is an apocalyptic number.

It is an amenable number.

68465079573 is a deficient number, since it is larger than the sum of its proper divisors (33434942187).

68465079573 is a wasteful number, since it uses less digits than its factorization.

68465079573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 38102400, while the sum is 60.

The spelling of 68465079573 in words is "sixty-eight billion, four hundred sixty-five million, seventy-nine thousand, five hundred seventy-three".

Divisors: 1 3 11 33 89 151 267 317 453 487 951 979 1461 1661 2937 3487 4983 5357 10461 13439 16071 28213 40317 43343 47867 73537 84639 130029 143601 147829 154379 220611 310343 443487 463137 476773 526537 808907 931029 1430319 1579611 1698169 2426721 4260163 5094507 6544793 12780489 13739731 19634379 23311229 41219193 46861793 69933687 71992723 140585379 151137041 215978169 256423519 453411123 769270557 2074699381 6224098143 22821693191 68465079573