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28101427195 = 597550310529
BaseRepresentation
bin11010001010111110…
…011011111111111011
32200112102210102002211
4122022332123333323
5430022431132240
620524251035551
72013244122112
oct321276337773
980472712084
1028101427195
1110a105831a6
12554313bbb7
13285ac4103a
141508232c79
15ae70edbea
hex68af9bffb

28101427195 has 16 divisors (see below), whose sum is σ = 34078786560. Its totient is φ = 22243221504.

The previous prime is 28101427169. The next prime is 28101427201. The reversal of 28101427195 is 59172410182.

It is a cyclic number.

It is not a de Polignac number, because 28101427195 - 215 = 28101394427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663691 + ... + 2674219.

It is an arithmetic number, because the mean of its divisors is an integer number (2129924160).

Almost surely, 228101427195 is an apocalyptic number.

28101427195 is a deficient number, since it is larger than the sum of its proper divisors (5977359365).

28101427195 is a wasteful number, since it uses less digits than its factorization.

28101427195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16134.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 28101427195 in words is "twenty-eight billion, one hundred one million, four hundred twenty-seven thousand, one hundred ninety-five".

Divisors: 1 5 97 485 5503 10529 27515 52645 533791 1021313 2668955 5106565 57941087 289705435 5620285439 28101427195