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127965744830 = 257116712719531
BaseRepresentation
bin111011100101101011…
…0100100111010111110
3110020022011010101010202
41313023112210322332
54044033212313310
6134441530003502
712150052612160
oct1671326447276
9406264111122
10127965744830
114a2a7366110
1220973576592
13c0b45c5751
14629d254930
1534de4863a5
hex1dcb5a4ebe

127965744830 has 128 divisors (see below), whose sum is σ = 293771280384. Its totient is φ = 38978755200.

The previous prime is 127965744821. The next prime is 127965744871. The reversal of 127965744830 is 38447569721.

It is a Curzon number.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 6542165 + ... + 6561695.

It is an arithmetic number, because the mean of its divisors is an integer number (2295088128).

It is a 1-persistent number, because it is pandigital, but 2⋅127965744830 = 255931489660 is not.

Almost surely, 2127965744830 is an apocalyptic number.

127965744830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127965744830 is an abundant number, since it is smaller than the sum of its proper divisors (165805535554).

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

127965744830 is a wasteful number, since it uses less digits than its factorization.

127965744830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19750.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 127965744830 in words is "one hundred twenty-seven billion, nine hundred sixty-five million, seven hundred forty-four thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 67 70 77 110 127 134 154 254 335 385 469 635 670 737 770 889 938 1270 1397 1474 1778 2345 2794 3685 4445 4690 5159 6985 7370 8509 8890 9779 10318 13970 17018 19531 19558 25795 39062 42545 48895 51590 59563 85090 93599 97655 97790 119126 136717 187198 195310 214841 273434 297815 429682 467995 595630 655193 683585 935990 1074205 1308577 1310386 1367170 1503887 2148410 2480437 2617154 3007774 3275965 4960874 6542885 6551930 7519435 9160039 12402185 13085770 14394347 15038870 17363059 18320078 24804370 27284807 28788694 34726118 45800195 54569614 71971735 86815295 91600390 100760429 136424035 143943470 166189279 173630590 190993649 201520858 272848070 332378558 381987298 503802145 830946395 954968245 1007604290 1163324953 1661892790 1828082069 1909936490 2326649906 3656164138 5816624765 9140410345 11633249530 12796574483 18280820690 25593148966 63982872415 127965744830