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86510741 = 2914920021
BaseRepresentation
bin1010010100000…
…00110010010101
320000210012102112
411022000302111
5134121320431
612330120405
72100220622
oct512006225
9200705375
1086510741
1144918889
1224b80105
1314bcc9b5
14b6bd349
1578dcc2b
hex5280c95

86510741 has 8 divisors (see below), whose sum is σ = 90099000. Its totient is φ = 82962880.

The previous prime is 86510737. The next prime is 86510747. The reversal of 86510741 is 14701568.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 874225 + 85636516 = 935^2 + 9254^2 .

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 86510741 - 22 = 86510737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86510698 and 86510707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86510747) 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, 5690 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (11262375).

Almost surely, 286510741 is an apocalyptic number.

It is an amenable number.

86510741 is a deficient number, since it is larger than the sum of its proper divisors (3588259).

86510741 is a wasteful number, since it uses less digits than its factorization.

86510741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20199.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 86510741 is about 9301.1150406820. The cubic root of 86510741 is about 442.2725757410.

The spelling of 86510741 in words is "eighty-six million, five hundred ten thousand, seven hundred forty-one".

Divisors: 1 29 149 4321 20021 580609 2983129 86510741