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86193005 = 517238601
BaseRepresentation
bin1010010001100…
…11001101101101
320000012001120112
411020303031231
5134031134010
612315225405
72064425363
oct510631555
9200161515
1086193005
1144721098
1224a48265
1314b1b1a2
14b639633
157878a05
hex523336d

86193005 has 4 divisors (see below), whose sum is σ = 103431612. Its totient is φ = 68954400.

The previous prime is 86192969. The next prime is 86193007. The reversal of 86193005 is 50039168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10259209 + 75933796 = 3203^2 + 8714^2 .

It is not a de Polignac number, because 86193005 - 28 = 86192749 is a prime.

It is a super-2 number, since 2×861930052 = 14858468221860050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86193007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8619296 + ... + 8619305.

It is an arithmetic number, because the mean of its divisors is an integer number (25857903).

Almost surely, 286193005 is an apocalyptic number.

It is an amenable number.

86193005 is a deficient number, since it is larger than the sum of its proper divisors (17238607).

86193005 is a wasteful number, since it uses less digits than its factorization.

86193005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17238606.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 86193005 is about 9284.0187957587. The cubic root of 86193005 is about 441.7304530318.

The spelling of 86193005 in words is "eighty-six million, one hundred ninety-three thousand, five".

Divisors: 1 5 17238601 86193005