Search a number
-
+
28107801076 = 2264310928383
BaseRepresentation
bin11010001011010110…
…110000000111110100
32200112212210020102111
4122023112300013310
5430031044113301
620525035420404
72013352236625
oct321326600764
980485706374
1028107801076
1110a14136a73
1255452b4704
13285c363274
141509011a4c
15ae795c551
hex68b5b01f4

28107801076 has 12 divisors (see below), whose sum is σ = 49265155072. Its totient is φ = 14032042488.

The previous prime is 28107801049. The next prime is 28107801079. The reversal of 28107801076 is 67010870182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28107801079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5461620 + ... + 5466763.

Almost surely, 228107801076 is an apocalyptic number.

It is an amenable number.

28107801076 is a deficient number, since it is larger than the sum of its proper divisors (21157353996).

28107801076 is a wasteful number, since it uses less digits than its factorization.

28107801076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10929030 (or 10929028 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 28107801076 in words is "twenty-eight billion, one hundred seven million, eight hundred one thousand, seventy-six".

Divisors: 1 2 4 643 1286 2572 10928383 21856766 43713532 7026950269 14053900538 28107801076