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85768774 = 271317191459
BaseRepresentation
bin1010001110010…
…11101001000110
312222101111122021
411013023221012
5133424100044
612302153354
72061010510
oct507135106
9188344567
1085768774
1144461393
122488285a
1314a00070
14b568bb0
1577e2e84
hex51cba46

85768774 has 64 divisors (see below), whose sum is σ = 176601600. Its totient is φ = 30233088.

The previous prime is 85768769. The next prime is 85768811. The reversal of 85768774 is 47786758.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58057 + ... + 59515.

It is an arithmetic number, because the mean of its divisors is an integer number (2759400).

Almost surely, 285768774 is an apocalyptic number.

85768774 is an abundant number, since it is smaller than the sum of its proper divisors (90832826).

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

85768774 is a wasteful number, since it uses less digits than its factorization.

85768774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its digits is 2634240, while the sum is 52.

The square root of 85768774 is about 9261.1432339642. The cubic root of 85768774 is about 441.0045470983.

The spelling of 85768774 in words is "eighty-five million, seven hundred sixty-eight thousand, seven hundred seventy-four".

Divisors: 1 2 7 13 14 17 19 26 34 38 91 119 133 182 221 238 247 266 323 442 494 646 1459 1547 1729 2261 2918 3094 3458 4199 4522 8398 10213 18967 20426 24803 27721 29393 37934 49606 55442 58786 132769 173621 194047 265538 322439 347242 360373 388094 471257 644878 720746 942514 2257073 2522611 3298799 4514146 5045222 6126341 6597598 12252682 42884387 85768774