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85507241 = 472577079
BaseRepresentation
bin1010001100010…
…11110010101001
312221220012212212
411012023302221
5133342212431
612252414505
72055541151
oct506136251
9187805785
1085507241
11442a2946
1224777435
131493b001
14b4db761
15779072b
hex518bca9

85507241 has 8 divisors (see below), whose sum is σ = 87678720. Its totient is φ = 83350528.

The previous prime is 85507199. The next prime is 85507243. The reversal of 85507241 is 14270558.

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 85507241 - 210 = 85506217 is a prime.

It is a super-2 number, since 2×855072412 = 14622976526864162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85507198 and 85507207.

It is not an unprimeable number, because it can be changed into a prime (85507243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8540 + ... + 15618.

It is an arithmetic number, because the mean of its divisors is an integer number (10959840).

Almost surely, 285507241 is an apocalyptic number.

It is an amenable number.

85507241 is a deficient number, since it is larger than the sum of its proper divisors (2171479).

85507241 is a wasteful number, since it uses less digits than its factorization.

85507241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 85507241 is about 9247.0125446006. The cubic root of 85507241 is about 440.5558419434. Note that the first 3 decimals are identical.

Adding to 85507241 its reverse (14270558), we get a palindrome (99777799).

The spelling of 85507241 in words is "eighty-five million, five hundred seven thousand, two hundred forty-one".

Divisors: 1 47 257 7079 12079 332713 1819303 85507241