Search a number
-
+
83525081 = 6710112343
BaseRepresentation
bin1001111101001…
…11110111011001
312211011111212112
410332213313121
5132340300311
612142122105
72032644233
oct476476731
9184144775
1083525081
11431696a2
1223b80335
13143c5a33
14b143253
1574ed28b
hex4fa7dd9

83525081 has 8 divisors (see below), whose sum is σ = 85617984. Its totient is φ = 81457200.

The previous prime is 83525059. The next prime is 83525087. The reversal of 83525081 is 18052538.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83525081 - 214 = 83508697 is a prime.

It is a super-2 number, since 2×835250812 = 13952878312113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83525087) 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, 596 + ... + 12938.

It is an arithmetic number, because the mean of its divisors is an integer number (10702248).

Almost surely, 283525081 is an apocalyptic number.

It is an amenable number.

83525081 is a deficient number, since it is larger than the sum of its proper divisors (2092903).

83525081 is a wasteful number, since it uses less digits than its factorization.

83525081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 83525081 is about 9139.2057094695. The cubic root of 83525081 is about 437.1249897750.

The spelling of 83525081 in words is "eighty-three million, five hundred twenty-five thousand, eighty-one".

Divisors: 1 67 101 6767 12343 826981 1246643 83525081