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68440733704486 = 211131032323332667
BaseRepresentation
bin11111000111111000110011…
…00111101110000100100110
322222022212111101222212200001
433203330121213232010212
532432313110312020421
6401321123343211514
720262452116555633
oct1743743147560446
9288285441885601
1068440733704486
111a897608a25820
1278143332a6b9a
132c25c19b737b0
1412c8798d7518a
157da479527691
hex3e3f199ee126

68440733704486 has 32 divisors (see below), whose sum is σ = 121779805125888. Its totient is φ = 28437591831840.

The previous prime is 68440733704417. The next prime is 68440733704487.

68440733704486 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68440733704487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161636876 + ... + 1161695791.

It is an arithmetic number, because the mean of its divisors is an integer number (3805618910184).

Almost surely, 268440733704486 is an apocalyptic number.

68440733704486 is a deficient number, since it is larger than the sum of its proper divisors (53339071421402).

68440733704486 is a wasteful number, since it uses less digits than its factorization.

68440733704486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323332796.

The product of its (nonzero) digits is 260112384, while the sum is 64.

The spelling of 68440733704486 in words is "sixty-eight trillion, four hundred forty billion, seven hundred thirty-three million, seven hundred four thousand, four hundred eighty-six".

Divisors: 1 2 11 13 22 26 103 143 206 286 1133 1339 2266 2678 14729 29458 2323332667 4646665334 25556659337 30203324671 51113318674 60406649342 239303264701 332236571381 478606529402 664473142762 2632335911711 3110942441113 5264671823422 6221884882226 34220366852243 68440733704486