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86250481 = 192238921
BaseRepresentation
bin1010010010000…
…01001111110001
320000021222102021
411021001033301
5134040003411
612320351441
72065055062
oct511011761
9200258367
1086250481
1144760299
1224a75581
1314b3b3b5
14b652569
15788aa71
hex52413f1

86250481 has 6 divisors (see below), whose sum is σ = 91029282. Its totient is φ = 81710640.

The previous prime is 86250467. The next prime is 86250497. The reversal of 86250481 is 18405268.

It can be written as a sum of positive squares in only one way, i.e., 45495025 + 40755456 = 6745^2 + 6384^2 .

It is not a de Polignac number, because 86250481 - 215 = 86217713 is a prime.

It is a super-2 number, since 2×862504812 = 14878290945462722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86250181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119100 + ... + 119821.

It is an arithmetic number, because the mean of its divisors is an integer number (15171547).

Almost surely, 286250481 is an apocalyptic number.

It is an amenable number.

86250481 is a deficient number, since it is larger than the sum of its proper divisors (4778801).

86250481 is a wasteful number, since it uses less digits than its factorization.

86250481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238959 (or 238940 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 86250481 is about 9287.1137066367. The cubic root of 86250481 is about 441.8286174488.

The spelling of 86250481 in words is "eighty-six million, two hundred fifty thousand, four hundred eighty-one".

Divisors: 1 19 361 238921 4539499 86250481