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128695614 = 23101212369
BaseRepresentation
bin1111010101110…
…11110100111110
322222011102012020
413222323310332
5230421224424
620434221010
73121615605
oct752736476
9288142166
10128695614
1166710a13
1237124766
132087cb68
1413140a3c
15b472079
hex7abbd3e

128695614 has 16 divisors (see below), whose sum is σ = 259940880. Its totient is φ = 42473600.

The previous prime is 128695613. The next prime is 128695673. The reversal of 128695614 is 416596821.

It is a super-2 number, since 2×1286956142 = 33125122125673992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128695613) 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 7 ways as a sum of consecutive naturals, for example, 105579 + ... + 106790.

It is an arithmetic number, because the mean of its divisors is an integer number (16246305).

Almost surely, 2128695614 is an apocalyptic number.

128695614 is an abundant number, since it is smaller than the sum of its proper divisors (131245266).

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

128695614 is a wasteful number, since it uses less digits than its factorization.

128695614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212475.

The product of its digits is 103680, while the sum is 42.

The square root of 128695614 is about 11344.4089312754. The cubic root of 128695614 is about 504.8797073218.

The spelling of 128695614 in words is "one hundred twenty-eight million, six hundred ninety-five thousand, six hundred fourteen".

Divisors: 1 2 3 6 101 202 303 606 212369 424738 637107 1274214 21449269 42898538 64347807 128695614