Search a number
-
+
128244026183161 = 797223846959233
BaseRepresentation
bin11101001010001100100011…
…101000000000110111111001
3121211002000020200110221210111
4131022030203220000313321
5113302122231200330121
61132430254200544321
736004216343425510
oct3512144350006771
9554060220427714
10128244026183161
1137953a93513689
1212472674a820a1
13567348a580845
1423950889a9677
15ec5dc4c202e1
hex74a323a00df9

128244026183161 has 16 divisors (see below), whose sum is σ = 148739592838144. Its totient is φ = 108302370914304.

The previous prime is 128244026183129. The next prime is 128244026183213. The reversal of 128244026183161 is 161381620442821.

It is not a de Polignac number, because 128244026183161 - 25 = 128244026183129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128244026183461) 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, 423328200 + ... + 423631033.

It is an arithmetic number, because the mean of its divisors is an integer number (9296224552384).

Almost surely, 2128244026183161 is an apocalyptic number.

It is an amenable number.

128244026183161 is a deficient number, since it is larger than the sum of its proper divisors (20495566654983).

128244026183161 is an equidigital number, since it uses as much as digits as its factorization.

128244026183161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846959560.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 128244026183161 in words is "one hundred twenty-eight trillion, two hundred forty-four billion, twenty-six million, one hundred eighty-three thousand, one hundred sixty-one".

Divisors: 1 7 97 223 679 1561 21631 151417 846959233 5928714631 82155045601 188871908959 575085319207 1322103362713 18320575169023 128244026183161