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28110766601 = 201471395283
BaseRepresentation
bin11010001011100010…
…000100001000001001
32200120002100220100202
4122023202010020021
5430032324012401
620525223141545
72013416400521
oct321342041011
980502326322
1028110766601
1110a15882015
1255462a48b5
13285cb61008
141509584681
15ae7d4606b
hex68b884209

28110766601 has 4 divisors (see below), whose sum is σ = 28112182032. Its totient is φ = 28109351172.

The previous prime is 28110766597. The next prime is 28110766603. The reversal of 28110766601 is 10666701182.

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 28110766601 - 22 = 28110766597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28110766603) 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, 677495 + ... + 717788.

It is an arithmetic number, because the mean of its divisors is an integer number (7028045508).

Almost surely, 228110766601 is an apocalyptic number.

It is an amenable number.

28110766601 is a deficient number, since it is larger than the sum of its proper divisors (1415431).

28110766601 is a wasteful number, since it uses less digits than its factorization.

28110766601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415430.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 28110766601 in words is "twenty-eight billion, one hundred ten million, seven hundred sixty-six thousand, six hundred one".

Divisors: 1 20147 1395283 28110766601