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128316204168137 = 29139116867272381
BaseRepresentation
bin11101001011001111110001…
…110001001011001111001001
3121211022220112220002111101022
4131023033301301023033021
5113304313041231340022
61132523352253402225
736012353105243546
oct3513176161131711
9554286486074338
10128316204168137
1137981662069037
1212484659199375
13567a220cbc1ab
14239877496bbcd
15ec7beb64ec42
hex74b3f1c4b3c9

128316204168137 has 16 divisors (see below), whose sum is σ = 133697506219200. Its totient is φ = 122998697613120.

The previous prime is 128316204168121. The next prime is 128316204168161. The reversal of 128316204168137 is 731861402613821.

It is a cyclic number.

It is not a de Polignac number, because 128316204168137 - 24 = 128316204168121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128316204668137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470954687 + ... + 471227067.

It is an arithmetic number, because the mean of its divisors is an integer number (8356094138700).

Almost surely, 2128316204168137 is an apocalyptic number.

It is an amenable number.

128316204168137 is a deficient number, since it is larger than the sum of its proper divisors (5381302051063).

128316204168137 is a wasteful number, since it uses less digits than its factorization.

128316204168137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389416.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 128316204168137 in words is "one hundred twenty-eight trillion, three hundred sixteen billion, two hundred four million, one hundred sixty-eight thousand, one hundred thirty-seven".

Divisors: 1 29 139 4031 116867 272381 3389143 7899049 16244513 37860959 471090877 1097967811 31832350327 923138159483 4424696695453 128316204168137