Search a number
-
+
28285425101 = 1672393671931
BaseRepresentation
bin11010010101111100…
…010101010111001101
32201000021000110210002
4122111330111113031
5430412032100401
620554422454045
72020640101133
oct322574252715
981007013702
1028285425101
1110aa542658a
125594894325
13288a0b483b
14152484b753
15b08346a6b
hex695f155cd

28285425101 has 16 divisors (see below), whose sum is σ = 28666552320. Its totient is φ = 27907661040.

The previous prime is 28285425089. The next prime is 28285425167. The reversal of 28285425101 is 10152458282.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28285425101 - 26 = 28285425037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285425601) 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, 14647106 + ... + 14649036.

It is an arithmetic number, because the mean of its divisors is an integer number (1791659520).

Almost surely, 228285425101 is an apocalyptic number.

It is an amenable number.

28285425101 is a deficient number, since it is larger than the sum of its proper divisors (381127219).

28285425101 is a wasteful number, since it uses less digits than its factorization.

28285425101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 51200, while the sum is 38.

The spelling of 28285425101 in words is "twenty-eight billion, two hundred eighty-five million, four hundred twenty-five thousand, one hundred one".

Divisors: 1 167 239 367 1931 39913 61289 87713 322477 461509 708677 14648071 77072003 118349059 169373803 28285425101