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86031745 = 5107160807
BaseRepresentation
bin1010010000010…
…11110110000001
312222212212100221
411020023312001
5134011003440
612311543041
72063154262
oct510136601
9188785327
1086031745
1144620a18
122498aa81
1314a92977
14b5d6969
157845d4a
hex520bd81

86031745 has 8 divisors (see below), whose sum is σ = 104203584. Its totient is φ = 68181744.

The previous prime is 86031721. The next prime is 86031749. The reversal of 86031745 is 54713068.

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 86031745 - 217 = 85900673 is a prime.

It is a super-2 number, since 2×860317452 = 14802922295490050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86031745.

It is not an unprimeable number, because it can be changed into a prime (86031749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79869 + ... + 80938.

It is an arithmetic number, because the mean of its divisors is an integer number (13025448).

Almost surely, 286031745 is an apocalyptic number.

It is an amenable number.

86031745 is a deficient number, since it is larger than the sum of its proper divisors (18171839).

86031745 is a wasteful number, since it uses less digits than its factorization.

86031745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160919.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 86031745 is about 9275.3299132699. The cubic root of 86031745 is about 441.4548006434.

The spelling of 86031745 in words is "eighty-six million, thirty-one thousand, seven hundred forty-five".

Divisors: 1 5 107 535 160807 804035 17206349 86031745