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86570141 = 712367163
BaseRepresentation
bin1010010100011…
…11010010011101
320000220012220112
411022033102131
5134130221031
612331255405
72100556040
oct512172235
9200805815
1086570141
1144959479
1224baa565
1314c20a48
14b6d6c57
15790062b
hex528f49d

86570141 has 4 divisors (see below), whose sum is σ = 98937312. Its totient is φ = 74202972.

The previous prime is 86570131. The next prime is 86570153. The reversal of 86570141 is 14107568.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86570141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86570098 and 86570107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86570101) 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, 6183575 + ... + 6183588.

It is an arithmetic number, because the mean of its divisors is an integer number (24734328).

Almost surely, 286570141 is an apocalyptic number.

It is an amenable number.

86570141 is a deficient number, since it is larger than the sum of its proper divisors (12367171).

86570141 is a wasteful number, since it uses less digits than its factorization.

86570141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12367170.

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

The square root of 86570141 is about 9304.3076582839. The cubic root of 86570141 is about 442.3737769725.

The spelling of 86570141 in words is "eighty-six million, five hundred seventy thousand, one hundred forty-one".

Divisors: 1 7 12367163 86570141