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75758254164 = 2232171136411709
BaseRepresentation
bin100011010001110001…
…0110011100001010100
321020112201112001121100
41012203202303201110
52220123103113124
654445230150100
75321234351445
oct1064342634124
9236481461540
1075758254164
112a14661770a
1212823352330
1371b4400a38
1439496972cc
151e85de51c9
hex11a38b3854

75758254164 has 144 divisors (see below), whose sum is σ = 204998124240. Its totient is φ = 23506452480.

The previous prime is 75758254163. The next prime is 75758254211. The reversal of 75758254164 is 46145285757.

It is a happy number.

75758254164 is a `hidden beast` number, since 7 + 5 + 7 + 582 + 54 + 1 + 6 + 4 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 960380100 + 74797874064 = 30990^2 + 273492^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75758254164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75758254163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44328142 + ... + 44329850.

It is an arithmetic number, because the mean of its divisors is an integer number (1423598085).

Almost surely, 275758254164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75758254164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102499062120).

75758254164 is an abundant number, since it is smaller than the sum of its proper divisors (129239870076).

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

75758254164 is a wasteful number, since it uses less digits than its factorization.

75758254164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2485 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 75758254164 in words is "seventy-five billion, seven hundred fifty-eight million, two hundred fifty-four thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 113 153 204 226 306 339 452 612 641 678 1017 1282 1356 1709 1921 1923 2034 2564 3418 3842 3846 4068 5127 5763 5769 6836 7684 7692 10254 10897 11526 11538 15381 17289 20508 21794 23052 23076 29053 30762 32691 34578 43588 58106 61524 65382 69156 72433 87159 98073 116212 130764 144866 174318 193117 196146 217299 261477 289732 348636 386234 392292 434598 522954 579351 651897 772468 869196 1045908 1095469 1158702 1231361 1303794 1738053 2190938 2317404 2462722 2607588 3282989 3286407 3476106 3694083 4381876 4925444 6565978 6572814 6952212 7388166 9848967 9859221 11082249 13131956 13145628 14776332 18622973 19697934 19718442 22164498 29546901 37245946 39395868 39436884 44328996 55868919 59093802 74491892 111737838 118187604 123787997 167606757 223475676 247575994 335213514 371363991 495151988 670427028 742727982 1114091973 1485455964 2104395949 2228183946 4208791898 4456367892 6313187847 8417583796 12626375694 18939563541 25252751388 37879127082 75758254164