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128664058 = 2174019437
BaseRepresentation
bin1111010101101…
…00000111111010
322222002210220111
413222310013322
5230414222213
620433414534
73121424605
oct752640772
9288083814
10128664058
116669a236
123710a44a
132086b6a3
141313333c
15b467a3d
hex7ab41fa

128664058 has 16 divisors (see below), whose sum is σ = 204880104. Its totient is φ = 60390400.

The previous prime is 128664037. The next prime is 128664077. The reversal of 128664058 is 850466821.

It can be written as a sum of positive squares in 4 ways, for example, as 126405049 + 2259009 = 11243^2 + 1503^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 128664058.

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, 8916 + ... + 18352.

Almost surely, 2128664058 is an apocalyptic number.

128664058 is a deficient number, since it is larger than the sum of its proper divisors (76216046).

128664058 is a wasteful number, since it uses less digits than its factorization.

128664058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 128664058 is about 11343.0180287259. The cubic root of 128664058 is about 504.8384386623.

The spelling of 128664058 in words is "one hundred twenty-eight million, six hundred sixty-four thousand, fifty-eight".

Divisors: 1 2 17 34 401 802 6817 9437 13634 18874 160429 320858 3784237 7568474 64332029 128664058