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86040620 = 2257575683
BaseRepresentation
bin1010010000011…
…10000000101100
312222220022112122
411020032000230
5134011244440
612312052112
72063222201
oct510160054
9188808478
1086040620
1144627656
1224994038
1314a96a13
14b5d9ca8
1578487b5
hex520e02c

86040620 has 24 divisors (see below), whose sum is σ = 180955824. Its totient is φ = 34364736.

The previous prime is 86040613. The next prime is 86040623. The reversal of 86040620 is 2604068.

It is a self number, because there is not a number n which added to its sum of digits gives 86040620.

It is not an unprimeable number, because it can be changed into a prime (86040623) 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, 12299 + ... + 17981.

It is an arithmetic number, because the mean of its divisors is an integer number (7539826).

Almost surely, 286040620 is an apocalyptic number.

It is an amenable number.

86040620 is an abundant number, since it is smaller than the sum of its proper divisors (94915204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86040620 is a wasteful number, since it uses less digits than its factorization.

86040620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449 (or 6447 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 86040620 is about 9275.8083205724. The cubic root of 86040620 is about 441.4699802210.

Adding to 86040620 its reverse (2604068), we get a palindrome (88644688).

The spelling of 86040620 in words is "eighty-six million, forty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 757 1514 3028 3785 5683 7570 11366 15140 22732 28415 56830 113660 4302031 8604062 17208124 21510155 43020310 86040620