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129002160155 = 51123110764283
BaseRepresentation
bin111100000100100100…
…0001100000000011011
3110022222101022201200112
41320021020030000123
54103144023111110
6135132431554535
712214536161201
oct1701110140033
9408871281615
10129002160155
114a7893a1300
122100268ba4b
13c21b24295b
14635ab61071
15355045c405
hex1e0920c01b

129002160155 has 48 divisors (see below), whose sum is σ = 177288072192. Its totient is φ = 89943374400.

The previous prime is 129002160151. The next prime is 129002160197. The reversal of 129002160155 is 551061200921.

It is not a de Polignac number, because 129002160155 - 22 = 129002160151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129002160151) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1974644 + ... + 2038926.

It is an arithmetic number, because the mean of its divisors is an integer number (3693501504).

Almost surely, 2129002160155 is an apocalyptic number.

129002160155 is a deficient number, since it is larger than the sum of its proper divisors (48285912037).

129002160155 is a wasteful number, since it uses less digits than its factorization.

129002160155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64448 (or 64437 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 129002160155 in words is "one hundred twenty-nine billion, two million, one hundred sixty thousand, one hundred fifty-five".

Divisors: 1 5 11 31 55 107 121 155 341 535 605 1177 1705 3317 3751 5885 12947 16585 18755 36487 64283 64735 182435 321415 401357 707113 1992773 2006785 3535565 6878281 7778243 9963865 21920503 34391405 38891215 75661091 109602515 213226711 241125533 378305455 832272001 1066133555 1205627665 2345493821 4161360005 11727469105 25800432031 129002160155