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128195848 = 23114135531
BaseRepresentation
bin1111010010000…
…01110100001000
322221020000122101
413221001310020
5230304231343
620415403144
73114434554
oct751016410
9287200571
10128195848
11663aa490
1236b234b4
1320736541
1413050864
15b3c3e4d
hex7a41d08

128195848 has 32 divisors (see below), whose sum is σ = 268621920. Its totient is φ = 56848000.

The previous prime is 128195839. The next prime is 128195891. The reversal of 128195848 is 848591821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128195798 and 128195807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14158 + ... + 21373.

It is an arithmetic number, because the mean of its divisors is an integer number (8394435).

Almost surely, 2128195848 is an apocalyptic number.

It is an amenable number.

128195848 is an abundant number, since it is smaller than the sum of its proper divisors (140426072).

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

128195848 is a wasteful number, since it uses less digits than its factorization.

128195848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35589 (or 35585 counting only the distinct ones).

The product of its digits is 184320, while the sum is 46.

The square root of 128195848 is about 11322.3605312673. The cubic root of 128195848 is about 504.2253233699.

The spelling of 128195848 in words is "one hundred twenty-eight million, one hundred ninety-five thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 11 22 41 44 82 88 164 328 451 902 1804 3608 35531 71062 142124 284248 390841 781682 1456771 1563364 2913542 3126728 5827084 11654168 16024481 32048962 64097924 128195848