Search a number
-
+
85489008 = 24311161911
BaseRepresentation
bin1010001100001…
…11010101110000
312221212021212120
411012013111300
5133341122013
612252154240
72055434043
oct506072560
9187767776
1085489008
1144290180
1224768980
1314932917
14b4d4c5a
15778a123
hex5187570

85489008 has 40 divisors (see below), whose sum is σ = 240925056. Its totient is φ = 25905600.

The previous prime is 85489003. The next prime is 85489021. The reversal of 85489008 is 80098458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85489003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80428 + ... + 81483.

Almost surely, 285489008 is an apocalyptic number.

85489008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85489008 is an abundant number, since it is smaller than the sum of its proper divisors (155436048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85489008 is a wasteful number, since it uses less digits than its factorization.

85489008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161933 (or 161927 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 85489008 is about 9246.0266060617. The cubic root of 85489008 is about 440.5245259769.

The spelling of 85489008 in words is "eighty-five million, four hundred eighty-nine thousand, eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 161911 323822 485733 647644 971466 1295288 1781021 1942932 2590576 3562042 3885864 5343063 7124084 7771728 10686126 14248168 21372252 28496336 42744504 85489008