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10128061477 = 23440350499
BaseRepresentation
bin10010110111010110…
…11111010000100101
3222010211201211110001
421123223133100211
5131220240431402
64352555301301
7505661050012
oct113353372045
928124654401
1010128061477
114328032546
121b67a4a831
13c553a77b1
146c117a709
153e4257187
hex25badf425

10128061477 has 4 divisors (see below), whose sum is σ = 10568412000. Its totient is φ = 9687710956.

The previous prime is 10128061469. The next prime is 10128061487. The reversal of 10128061477 is 77416082101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10128061477 - 23 = 10128061469 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 (10128061417) 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 3 ways as a sum of consecutive naturals, for example, 220175227 + ... + 220175272.

It is an arithmetic number, because the mean of its divisors is an integer number (2642103000).

Almost surely, 210128061477 is an apocalyptic number.

It is an amenable number.

10128061477 is a deficient number, since it is larger than the sum of its proper divisors (440350523).

10128061477 is an equidigital number, since it uses as much as digits as its factorization.

10128061477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440350522.

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 10128061477 in words is "ten billion, one hundred twenty-eight million, sixty-one thousand, four hundred seventy-seven".

Divisors: 1 23 440350499 10128061477