Search a number
-
+
85078680 = 2335708989
BaseRepresentation
bin1010001001000…
…11001010011000
312221002110000020
411010203022120
5133240004210
612235310440
72052104541
oct504431230
9187073006
1085078680
114402a965
12245ab420
131481ac1b
14b4294c8
157708770
hex5123298

85078680 has 32 divisors (see below), whose sum is σ = 255236400. Its totient is φ = 22687616.

The previous prime is 85078673. The next prime is 85078681. The reversal of 85078680 is 8687058.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85078681) 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, 354375 + ... + 354614.

Almost surely, 285078680 is an apocalyptic number.

It is an amenable number.

85078680 is an abundant number, since it is smaller than the sum of its proper divisors (170157720).

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

85078680 is a wasteful number, since it uses less digits than its factorization.

85078680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709003 (or 708999 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 85078680 is about 9223.8104924158. The cubic root of 85078680 is about 439.8185891269.

It can be divided in two parts, 85078 and 680, that added together give a palindrome (85758).

The spelling of 85078680 in words is "eighty-five million, seventy-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 708989 1417978 2126967 2835956 3544945 4253934 5671912 7089890 8507868 10634835 14179780 17015736 21269670 28359560 42539340 85078680