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28017684038 = 214008842019
BaseRepresentation
bin11010000101111110…
…111110111001000110
32200022121012211002102
4122011332332321012
5424340011342123
620512100112102
72011206246011
oct320576767106
980277184072
1028017684038
1110978285783
12551b095632
13284679cc86
1414db074378
15adeaab028
hex685fbee46

28017684038 has 4 divisors (see below), whose sum is σ = 42026526060. Its totient is φ = 14008842018.

The previous prime is 28017684007. The next prime is 28017684061. The reversal of 28017684038 is 83048671082.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 28017683983 and 28017684001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7004421008 + ... + 7004421011.

It is an arithmetic number, because the mean of its divisors is an integer number (10506631515).

Almost surely, 228017684038 is an apocalyptic number.

28017684038 is a deficient number, since it is larger than the sum of its proper divisors (14008842022).

28017684038 is a wasteful number, since it uses less digits than its factorization.

28017684038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008842021.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 28017684038 in words is "twenty-eight billion, seventeen million, six hundred eighty-four thousand, thirty-eight".

Divisors: 1 2 14008842019 28017684038