Search a number
-
+
128044133288880 = 2435533517222037
BaseRepresentation
bin11101000111010010011001…
…000101001000101110110000
3121210100220021210201210201120
4131013102121011020232300
5113240333341110221010
61132154355054302240
735653611663030204
oct3507223105105660
9553326253653646
10128044133288880
1137887237157606
121243b9891b7980
13565a6824c2543
142389524c08b04
15ec0ac5da5e70
hex747499148bb0

128044133288880 has 40 divisors (see below), whose sum is σ = 396936813196272. Its totient is φ = 34145102210304.

The previous prime is 128044133288821. The next prime is 128044133288899. The reversal of 128044133288880 is 88882331440821.

128044133288880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266758610779 + ... + 266758611258.

Almost surely, 2128044133288880 is an apocalyptic number.

128044133288880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128044133288880 is an abundant number, since it is smaller than the sum of its proper divisors (268892679907392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128044133288880 is a wasteful number, since it uses less digits than its factorization.

128044133288880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533517222053 (or 533517222047 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 60.

The spelling of 128044133288880 in words is "one hundred twenty-eight trillion, forty-four billion, one hundred thirty-three million, two hundred eighty-eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 533517222037 1067034444074 1600551666111 2134068888148 2667586110185 3201103332222 4268137776296 5335172220370 6402206664444 8002758330555 8536275552592 10670344440740 12804413328888 16005516661110 21340688881480 25608826657776 32011033322220 42681377762960 64022066644440 128044133288880