Search a number
-
+
128595051656 = 2379203473183
BaseRepresentation
bin111011111000011011…
…1001100010010001000
3110021221000021110210222
41313300313030102020
54101330313123111
6135024210125212
712201463622021
oct1676067142210
9407830243728
10128595051656
114a59a6106a5
1220b0a280808
13c184ab2956
14631ca69c48
1535298427db
hex1df0dcc488

128595051656 has 16 divisors (see below), whose sum is σ = 244167820800. Its totient is φ = 63483632784.

The previous prime is 128595051653. The next prime is 128595051679. The reversal of 128595051656 is 656150595821.

128595051656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 128595051598 and 128595051607.

It is not an unprimeable number, because it can be changed into a prime (128595051653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101735960 + ... + 101737223.

It is an arithmetic number, because the mean of its divisors is an integer number (15260488800).

Almost surely, 2128595051656 is an apocalyptic number.

It is an amenable number.

128595051656 is a deficient number, since it is larger than the sum of its proper divisors (115572769144).

128595051656 is a wasteful number, since it uses less digits than its factorization.

128595051656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203473268 (or 203473264 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 53.

The spelling of 128595051656 in words is "one hundred twenty-eight billion, five hundred ninety-five million, fifty-one thousand, six hundred fifty-six".

Divisors: 1 2 4 8 79 158 316 632 203473183 406946366 813892732 1627785464 16074381457 32148762914 64297525828 128595051656