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128098738852 = 22726591172049
BaseRepresentation
bin111011101001101000…
…1111010001010100100
3110020122102101011122021
41313103101322022210
54044321234120402
6134503040312524
712153256212640
oct1672321721244
9406572334567
10128098738852
114a365442527
12209b0012744
13c10601bc36
1462b2b93c20
1534eaea6d37
hex1dd347a2a4

128098738852 has 24 divisors (see below), whose sum is σ = 256208601600. Its totient is φ = 54897075840.

The previous prime is 128098738837. The next prime is 128098738871. The reversal of 128098738852 is 258837890821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658524 + ... + 830572.

It is an arithmetic number, because the mean of its divisors is an integer number (10675358400).

Almost surely, 2128098738852 is an apocalyptic number.

It is an amenable number.

128098738852 is an abundant number, since it is smaller than the sum of its proper divisors (128109862748).

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

128098738852 is a wasteful number, since it uses less digits than its factorization.

128098738852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198651 (or 198649 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 128098738852 in words is "one hundred twenty-eight billion, ninety-eight million, seven hundred thirty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 14 28 26591 53182 106364 172049 186137 344098 372274 688196 744548 1204343 2408686 4817372 4574954959 9149909918 18299819836 32024684713 64049369426 128098738852