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195705136669 = 72196179181241
BaseRepresentation
bin1011011001000011101…
…1110110011000011101
3200201011000202000121011
42312100323312120131
511201301003333134
6225523344135221
720065520133400
oct2662073663035
9621130660534
10195705136669
1175aa84a1879
1231b19307511
13155bb5aaa23
149687933d37
1551563a7264
hex2d90ef661d

195705136669 has 96 divisors (see below), whose sum is σ = 249042393600. Its totient is φ = 152845056000.

The previous prime is 195705136661. The next prime is 195705136673. The reversal of 195705136669 is 966631507591.

It is not a de Polignac number, because 195705136669 - 23 = 195705136661 is a prime.

It is a super-2 number, since 2×1957051366692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195705136661) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 812054389 + ... + 812054629.

It is an arithmetic number, because the mean of its divisors is an integer number (2594191600).

Almost surely, 2195705136669 is an apocalyptic number.

195705136669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

195705136669 is a deficient number, since it is larger than the sum of its proper divisors (53337256931).

195705136669 is a wasteful number, since it uses less digits than its factorization.

195705136669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 9185400, while the sum is 58.

The spelling of 195705136669 in words is "one hundred ninety-five billion, seven hundred five million, one hundred thirty-six thousand, six hundred sixty-nine".

Divisors: 1 7 19 49 61 79 133 181 241 427 553 931 1159 1267 1501 1687 2989 3439 3871 4579 4819 8113 8869 10507 11041 11809 14299 14701 19039 24073 32053 33733 43621 56791 73549 77287 91561 100093 102907 133273 168511 209779 224371 236131 271681 279319 305347 361741 541009 640927 700651 720349 828799 872239 932911 1161379 1468453 1901767 1955233 2137429 2532187 2660881 3446059 4486489 5801593 6105673 8129653 10279171 13312369 13686631 16572541 17725309 18626167 22066201 24122413 40611151 42739711 50556739 56907571 65475121 116007787 130383169 154463407 168856891 210209599 353897173 458325847 812054509 1081243849 1471467193 2477280211 3208280929 3993982381 10300270351 27957876667 195705136669