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127845103090 = 2512784510309
BaseRepresentation
bin111011100010000101…
…0010111010111110010
3110012222202010010210011
41313010022113113302
54043311321244330
6134421540125134
712144056306035
oct1670412272762
9405882103704
10127845103090
114a2452561a1
122093b0967aa
13c0956056c3
14628b20d01c
1534d3aa582a
hex1dc42975f2

127845103090 has 8 divisors (see below), whose sum is σ = 230121185580. Its totient is φ = 51138041232.

The previous prime is 127845103037. The next prime is 127845103097. The reversal of 127845103090 is 90301548721.

It can be written as a sum of positive squares in 2 ways, for example, as 110196777681 + 17648325409 = 331959^2 + 132847^2 .

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

It is not an unprimeable number, because it can be changed into a prime (127845103097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6392255145 + ... + 6392255164.

Almost surely, 2127845103090 is an apocalyptic number.

127845103090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127845103090 is a deficient number, since it is larger than the sum of its proper divisors (102276082490).

127845103090 is a wasteful number, since it uses less digits than its factorization.

127845103090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12784510316.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 127845103090 in words is "one hundred twenty-seven billion, eight hundred forty-five million, one hundred three thousand, ninety".

Divisors: 1 2 5 10 12784510309 25569020618 63922551545 127845103090