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68574047586 = 23112412718501
BaseRepresentation
bin111111110111010101…
…001110110101100010
320120000001011112220020
4333313111032311202
52110414424010321
651300311454310
74645220533662
oct776725166542
9216001145806
1068574047586
112709a297a00
1211359387396
13660abb0325
1434674aa1a2
151bb53414c6
hexff754ed62

68574047586 has 96 divisors (see below), whose sum is σ = 155014449408. Its totient is φ = 20196000000.

The previous prime is 68574047579. The next prime is 68574047593.

68574047586 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (68574047579) and next prime (68574047593).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8062336 + ... + 8070836.

It is an arithmetic number, because the mean of its divisors is an integer number (1614733848).

Almost surely, 268574047586 is an apocalyptic number.

68574047586 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68574047586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77507224704).

68574047586 is an abundant number, since it is smaller than the sum of its proper divisors (86440401822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68574047586 is a wasteful number, since it uses less digits than its factorization.

68574047586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8840 (or 8829 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 60.

The spelling of 68574047586 in words is "sixty-eight billion, five hundred seventy-four million, forty-seven thousand, five hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 41 66 82 121 123 242 246 271 363 451 542 726 813 902 1353 1626 2706 2981 4961 5962 8501 8943 9922 11111 14883 17002 17886 22222 25503 29766 32791 33333 51006 65582 66666 93511 98373 122221 187022 196746 244442 280533 348541 366663 561066 697082 733326 1028621 1045623 1344431 2057242 2091246 2303771 2688862 3085863 3833951 4033293 4607542 6171726 6911313 7667902 8066586 11501853 13822626 23003706 25341481 42173461 50682962 76024443 84346922 94454611 126520383 152048886 188909222 253040766 278756291 283363833 557512582 566727666 836268873 1039000721 1672537746 2078001442 3117002163 6234004326 11429007931 22858015862 34287023793 68574047586