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128650242296 = 23193127302683
BaseRepresentation
bin111011111010000100…
…1101110100011111000
3110022001212010110010202
41313310021232203320
54101433430223141
6135033501101332
712203034005462
oct1676411564370
9408055113122
10128650242296
114a6187871a4
1220b24857848
13c193367834
146326115132
15352e5e549b
hex1df426e8f8

128650242296 has 32 divisors (see below), whose sum is σ = 262105766400. Its totient is φ = 58973793120.

The previous prime is 128650242293. The next prime is 128650242317. The reversal of 128650242296 is 692242056821.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128650242296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128650242293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13646630 + ... + 13656053.

It is an arithmetic number, because the mean of its divisors is an integer number (8190805200).

Almost surely, 2128650242296 is an apocalyptic number.

It is an amenable number.

128650242296 is an abundant number, since it is smaller than the sum of its proper divisors (133455524104).

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

128650242296 is a wasteful number, since it uses less digits than its factorization.

128650242296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27302739 (or 27302735 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 128650242296 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, two hundred ninety-six".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 248 589 1178 2356 4712 27302683 54605366 109210732 218421464 518750977 846383173 1037501954 1692766346 2075003908 3385532692 4150007816 6771065384 16081280287 32162560574 64325121148 128650242296