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128875004 = 2297133181
BaseRepresentation
bin1111010111001…
…11100111111100
322222111112021022
413223213213330
5230443000004
620442123312
73123263606
oct753474774
9288445238
10128875004
1166823775
12371b0538
13209136cb
141318a176
15b4aa2be
hex7ae79fc

128875004 has 12 divisors (see below), whose sum is σ = 225770328. Its totient is φ = 64369200.

The previous prime is 128875001. The next prime is 128875007. The reversal of 128875004 is 400578821.

It is an interprime number because it is at equal distance from previous prime (128875001) and next prime (128875007).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128875001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12707 + ... + 20474.

It is an arithmetic number, because the mean of its divisors is an integer number (18814194).

Almost surely, 2128875004 is an apocalyptic number.

It is an amenable number.

128875004 is a deficient number, since it is larger than the sum of its proper divisors (96895324).

128875004 is a wasteful number, since it uses less digits than its factorization.

128875004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34156 (or 34154 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 128875004 is about 11352.3127159183. The cubic root of 128875004 is about 505.1141838983.

The spelling of 128875004 in words is "one hundred twenty-eight million, eight hundred seventy-five thousand, four".

Divisors: 1 2 4 971 1942 3884 33181 66362 132724 32218751 64437502 128875004