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128534208 = 2631160859
BaseRepresentation
bin1111010100101…
…00011011000000
322221212012210020
413222110123000
5230401043313
620430533440
73120344205
oct752243300
9287765706
10128534208
1166610720
1237067280
132082455a
14130dbcac
15b43e323
hex7a946c0

128534208 has 56 divisors (see below), whose sum is σ = 371002560. Its totient is φ = 38949120.

The previous prime is 128534191. The next prime is 128534213. The reversal of 128534208 is 802435821.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 28318 + ... + 32541.

Almost surely, 2128534208 is an apocalyptic number.

It is an amenable number.

128534208 is an abundant number, since it is smaller than the sum of its proper divisors (242468352).

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

128534208 is a wasteful number, since it uses less digits than its factorization.

128534208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60885 (or 60875 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 128534208 is about 11337.2927985476. The cubic root of 128534208 is about 504.6685509274.

The spelling of 128534208 in words is "one hundred twenty-eight million, five hundred thirty-four thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 60859 121718 182577 243436 365154 486872 669449 730308 973744 1338898 1460616 1947488 2008347 2677796 2921232 3894976 4016694 5355592 5842464 8033388 10711184 11684928 16066776 21422368 32133552 42844736 64267104 128534208