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128672675 = 5214934543
BaseRepresentation
bin1111010101101…
…10001110100011
322222010020201122
413222312032203
5230420011200
620433522455
73121461665
oct752661643
9288106648
10128672675
11666a575a
123711342b
13208725a1
1413136535
15b46a385
hex7ab63a3

128672675 has 12 divisors (see below), whose sum is σ = 160629600. Its totient is φ = 102244320.

The previous prime is 128672669. The next prime is 128672683. The reversal of 128672675 is 576276821.

It is not a de Polignac number, because 128672675 - 26 = 128672611 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13547 + ... + 20996.

It is an arithmetic number, because the mean of its divisors is an integer number (13385800).

Almost surely, 2128672675 is an apocalyptic number.

128672675 is a deficient number, since it is larger than the sum of its proper divisors (31956925).

128672675 is a wasteful number, since it uses less digits than its factorization.

128672675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34702 (or 34697 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 128672675 is about 11343.3978595481. The cubic root of 128672675 is about 504.8497085688.

The spelling of 128672675 in words is "one hundred twenty-eight million, six hundred seventy-two thousand, six hundred seventy-five".

Divisors: 1 5 25 149 745 3725 34543 172715 863575 5146907 25734535 128672675