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127905230 = 2586314821
BaseRepresentation
bin1111001111110…
…10110111001110
322220200020222202
413213322313032
5230220431410
620405241502
73112114355
oct747726716
9286606882
10127905230
1166221102
1236a03292
132066418b
1412db699c
15b367ca5
hex79fadce

127905230 has 16 divisors (see below), whose sum is σ = 230511744. Its totient is φ = 51099360.

The previous prime is 127905181. The next prime is 127905233. The reversal of 127905230 is 32509721.

It is a super-2 number, since 2×1279052302 = 32719495722705800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127905193 and 127905202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127905233) 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, 1220 + ... + 16040.

It is an arithmetic number, because the mean of its divisors is an integer number (14406984).

Almost surely, 2127905230 is an apocalyptic number.

127905230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127905230 is a deficient number, since it is larger than the sum of its proper divisors (102606514).

127905230 is a wasteful number, since it uses less digits than its factorization.

127905230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 127905230 is about 11309.5194416032. The cubic root of 127905230 is about 503.8440114181.

The spelling of 127905230 in words is "one hundred twenty-seven million, nine hundred five thousand, two hundred thirty".

Divisors: 1 2 5 10 863 1726 4315 8630 14821 29642 74105 148210 12790523 25581046 63952615 127905230