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128890041883008 = 273773657799871
BaseRepresentation
bin11101010011100110001101…
…001010010101100110000000
3121220100202201121222202121020
4131103212031022111212000
5113343213301210224013
61134043133503225440
736101666251322040
oct3523461512254600
9556322647882536
10128890041883008
1138082a6153958a
12125579062a8280
1356bc3816953c3
1423b8450355720
15ed7ad475e623
hex75398d295980

128890041883008 has 256 divisors, whose sum is σ = 396697528381440. Its totient is φ = 36315378155520.

The previous prime is 128890041882991. The next prime is 128890041883021. The reversal of 128890041883008 is 800388140098821.

It is a super-2 number, since 2×1288900418830082 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290515313 + ... + 1290615183.

It is an arithmetic number, because the mean of its divisors is an integer number (1549599720240).

Almost surely, 2128890041883008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128890041883008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198348764190720).

128890041883008 is an abundant number, since it is smaller than the sum of its proper divisors (267807486498432).

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

128890041883008 is an equidigital number, since it uses as much as digits as its factorization.

128890041883008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106545 (or 106533 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 60.

The spelling of 128890041883008 in words is "one hundred twenty-eight trillion, eight hundred ninety billion, forty-one million, eight hundred eighty-three thousand, eight".