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128008071084 = 22323463797359
BaseRepresentation
bin111011100110111100…
…0000010011110101100
3110020102002202202211210
41313031320002132230
54044130031233314
6134450041114420
712151105436265
oct1671570023654
9406362682753
10128008071084
114a319245493
1220985788a10
13c0c02c507a
1462a4b1196c
1534e3047559
hex1dcde027ac

128008071084 has 24 divisors (see below), whose sum is σ = 311671825920. Its totient is φ = 40814167504.

The previous prime is 128008071041. The next prime is 128008071101. The reversal of 128008071084 is 480170800821.

It is a happy number.

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, 231898404 + ... + 231898955.

It is an arithmetic number, because the mean of its divisors is an integer number (12986326080).

Almost surely, 2128008071084 is an apocalyptic number.

It is an amenable number.

128008071084 is an abundant number, since it is smaller than the sum of its proper divisors (183663754836).

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

128008071084 is a wasteful number, since it uses less digits than its factorization.

128008071084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463797389 (or 463797387 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The spelling of 128008071084 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, eighty-four".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 463797359 927594718 1391392077 1855189436 2782784154 5565568308 10667339257 21334678514 32002017771 42669357028 64004035542 128008071084