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127735139 = 71812557
BaseRepresentation
bin1111001110100…
…01010101100011
322220100121200002
413213101111203
5230200011024
620401450215
73110505440
oct747212543
9286317602
10127735139
1166115334
123694096b
132060492c
1412d709c7
15b3326ae
hex79d1563

127735139 has 12 divisors (see below), whose sum is σ = 147057552. Its totient is φ = 108686880.

The previous prime is 127735109. The next prime is 127735151. The reversal of 127735139 is 931537721.

It is not a de Polignac number, because 127735139 - 28 = 127734883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127735109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229049 + ... + 229605.

It is an arithmetic number, because the mean of its divisors is an integer number (12254796).

Almost surely, 2127735139 is an apocalyptic number.

127735139 is a deficient number, since it is larger than the sum of its proper divisors (19322413).

127735139 is an frugal number, since it uses more digits than its factorization.

127735139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 745 counting only the distinct ones).

The product of its digits is 39690, while the sum is 38.

The square root of 127735139 is about 11301.9971244024. The cubic root of 127735139 is about 503.6205716414.

The spelling of 127735139 in words is "one hundred twenty-seven million, seven hundred thirty-five thousand, one hundred thirty-nine".

Divisors: 1 7 181 557 1267 3899 32761 100817 229327 705719 18247877 127735139