Search a number
-
+
128853171207 = 32192404931333
BaseRepresentation
bin111100000000000111…
…1110101110000000111
3110022120222222022021100
41320000033311300013
54102342402434312
6135105550351143
712211046612115
oct1700017656007
9408528868240
10128853171207
114a71228a742
1220b807bb4b3
13c1c6409007
14634505aab5
15354232c5dc
hex1e003f5c07

128853171207 has 24 divisors (see below), whose sum is σ = 195931502000. Its totient is φ = 81374969088.

The previous prime is 128853171163. The next prime is 128853171269. The reversal of 128853171207 is 702171358821.

128853171207 is a `hidden beast` number, since 1 + 28 + 8 + 531 + 71 + 20 + 7 = 666.

It is not a de Polignac number, because 128853171207 - 216 = 128853105671 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128853171107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4096713 + ... + 4128045.

Almost surely, 2128853171207 is an apocalyptic number.

128853171207 is a deficient number, since it is larger than the sum of its proper divisors (67078330793).

128853171207 is a wasteful number, since it uses less digits than its factorization.

128853171207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55407 (or 55404 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 128853171207 in words is "one hundred twenty-eight billion, eight hundred fifty-three million, one hundred seventy-one thousand, two hundred seven".

Divisors: 1 3 9 19 57 171 24049 31333 72147 93999 216441 281997 456931 595327 1370793 1785981 4112379 5357943 753527317 2260581951 6781745853 14317019023 42951057069 128853171207