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85136241 = 3173164039
BaseRepresentation
bin1010001001100…
…01001101110001
312221012100222010
411010301031301
5133243324431
612240433133
72052434421
oct504611561
9187170863
1085136241
114406a133
12246187a9
131483b198
14b442481
15771a846
hex5131371

85136241 has 8 divisors (see below), whose sum is σ = 114171840. Its totient is φ = 56429072.

The previous prime is 85136239. The next prime is 85136251. The reversal of 85136241 is 14263158.

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 85136241 - 21 = 85136239 is a prime.

It is a super-2 number, since 2×851362412 = 14496359063220162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85136199 and 85136208.

It is not an unprimeable number, because it can be changed into a prime (85136201) 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, 81501 + ... + 82538.

It is an arithmetic number, because the mean of its divisors is an integer number (14271480).

Almost surely, 285136241 is an apocalyptic number.

It is an amenable number.

85136241 is a deficient number, since it is larger than the sum of its proper divisors (29035599).

85136241 is a wasteful number, since it uses less digits than its factorization.

85136241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164215.

The product of its digits is 5760, while the sum is 30.

The square root of 85136241 is about 9226.9302045697. The cubic root of 85136241 is about 439.9177549445.

Adding to 85136241 its reverse (14263158), we get a palindrome (99399399).

The spelling of 85136241 in words is "eighty-five million, one hundred thirty-six thousand, two hundred forty-one".

Divisors: 1 3 173 519 164039 492117 28378747 85136241