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28600145057 = 116173583879
BaseRepresentation
bin11010101000101100…
…111001010010100001
32201211012012220101202
4122220230321102201
5432033114120212
621045544210545
72031511136051
oct325054712241
981735186352
1028600145057
1111147044320
125662169a55
13290a367673
141554573561
15b25cb20c2
hex6a8b394a1

28600145057 has 16 divisors (see below), whose sum is σ = 32146097280. Its totient is φ = 25223529600.

The previous prime is 28600145009. The next prime is 28600145059. The reversal of 28600145057 is 75054100682.

It is a cyclic number.

It is not a de Polignac number, because 28600145057 - 222 = 28595950753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28600145057.

It is not an unprimeable number, because it can be changed into a prime (28600145059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242957 + ... + 340922.

It is an arithmetic number, because the mean of its divisors is an integer number (2009131080).

Almost surely, 228600145057 is an apocalyptic number.

It is an amenable number.

28600145057 is a deficient number, since it is larger than the sum of its proper divisors (3545952223).

28600145057 is a wasteful number, since it uses less digits than its factorization.

28600145057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584024.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 28600145057 in words is "twenty-eight billion, six hundred million, one hundred forty-five thousand, fifty-seven".

Divisors: 1 11 61 73 671 803 4453 48983 583879 6422669 35616619 42623167 391782809 468854837 2600013187 28600145057