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2128011488 = 25371797307
BaseRepresentation
bin111111011010110…
…1110000011100000
312111022020011222022
41332311232003200
513324232331423
6551054401012
7103506541061
oct17665560340
95438204868
102128011488
119a2230589
124b4800168
1327bb479c5
1416289c568
15c6c4bdc8
hex7ed6e0e0

2128011488 has 24 divisors (see below), whose sum is σ = 4302755352. Its totient is φ = 1035248256.

The previous prime is 2128011481. The next prime is 2128011541. The reversal of 2128011488 is 8841108212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128011481) 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 3 ways as a sum of consecutive naturals, for example, 897470 + ... + 899837.

It is an arithmetic number, because the mean of its divisors is an integer number (179281473).

Almost surely, 22128011488 is an apocalyptic number.

It is an amenable number.

2128011488 is an abundant number, since it is smaller than the sum of its proper divisors (2174743864).

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

2128011488 is a wasteful number, since it uses less digits than its factorization.

2128011488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797354 (or 1797346 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 2128011488 is about 46130.3748955068. The cubic root of 2128011488 is about 1286.2478328690.

It can be divided in two parts, 21280 and 11488, that added together give a 15-th power (32768 = 215).

The spelling of 2128011488 in words is "two billion, one hundred twenty-eight million, eleven thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 1797307 3594614 7189228 14378456 28756912 57513824 66500359 133000718 266001436 532002872 1064005744 2128011488