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127775485 = 5171503241
BaseRepresentation
bin1111001110110…
…11001011111101
322220102200000101
413213123023331
5230202303420
620402401101
73111034165
oct747331375
9286380011
10127775485
1166142682
1236960191
132061a0c6
1412d815a5
15b33e60a
hex79db2fd

127775485 has 8 divisors (see below), whose sum is σ = 162350136. Its totient is φ = 96207360.

The previous prime is 127775471. The next prime is 127775491. The reversal of 127775485 is 584577721.

It can be written as a sum of positive squares in 4 ways, for example, as 7193124 + 120582361 = 2682^2 + 10981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127775485 - 27 = 127775357 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 751536 + ... + 751705.

It is an arithmetic number, because the mean of its divisors is an integer number (20293767).

Almost surely, 2127775485 is an apocalyptic number.

It is an amenable number.

127775485 is a deficient number, since it is larger than the sum of its proper divisors (34574651).

127775485 is a wasteful number, since it uses less digits than its factorization.

127775485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503263.

The product of its digits is 548800, while the sum is 46.

The square root of 127775485 is about 11303.7818892617. The cubic root of 127775485 is about 503.6735900377.

The spelling of 127775485 in words is "one hundred twenty-seven million, seven hundred seventy-five thousand, four hundred eighty-five".

Divisors: 1 5 17 85 1503241 7516205 25555097 127775485