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127902085 = 5111722901
BaseRepresentation
bin1111001111110…
…10000110000101
322220200002200021
413213322012011
5230220331320
620405215141
73112102243
oct747720605
9286602607
10127902085
1166219803
1236a014b1
132066290c
1412db5793
15b366daa
hex79fa185

127902085 has 8 divisors (see below), whose sum is σ = 153626616. Its totient is φ = 102225600.

The previous prime is 127902077. The next prime is 127902097. The reversal of 127902085 is 580209721.

It can be written as a sum of positive squares in 4 ways, for example, as 16008001 + 111894084 = 4001^2 + 10578^2 .

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

It is not a de Polignac number, because 127902085 - 23 = 127902077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127902085.

It is a congruent number.

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, 5866 + ... + 17035.

It is an arithmetic number, because the mean of its divisors is an integer number (19203327).

Almost surely, 2127902085 is an apocalyptic number.

It is an amenable number.

127902085 is a deficient number, since it is larger than the sum of its proper divisors (25724531).

127902085 is a wasteful number, since it uses less digits than its factorization.

127902085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24023.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 127902085 is about 11309.3803985895. The cubic root of 127902085 is about 503.8398817918.

It can be divided in two parts, 12 and 7902085, that added together give a palindrome (7902097).

The spelling of 127902085 in words is "one hundred twenty-seven million, nine hundred two thousand, eighty-five".

Divisors: 1 5 1117 5585 22901 114505 25580417 127902085