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86123045 = 517224609
BaseRepresentation
bin1010010001000…
…10001000100101
320000001111121102
411020202020211
5134021414140
612313525445
72064014411
oct510421045
9200044542
1086123045
1144683578
1224a13885
1314ac53a8
14b61bd41
157862e15
hex5222225

86123045 has 4 divisors (see below), whose sum is σ = 103347660. Its totient is φ = 68898432.

The previous prime is 86123027. The next prime is 86123047. The reversal of 86123045 is 54032168.

86123045 is nontrivially palindromic in base 2 and base 16.

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 51466276 + 34656769 = 7174^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 86123045 - 210 = 86122021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86122999 and 86123017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86123047) 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, 8612300 + ... + 8612309.

It is an arithmetic number, because the mean of its divisors is an integer number (25836915).

Almost surely, 286123045 is an apocalyptic number.

It is an amenable number.

86123045 is a deficient number, since it is larger than the sum of its proper divisors (17224615).

86123045 is a wasteful number, since it uses less digits than its factorization.

86123045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224614.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 86123045 is about 9280.2502660219. The cubic root of 86123045 is about 441.6109080356.

The spelling of 86123045 in words is "eighty-six million, one hundred twenty-three thousand, forty-five".

Divisors: 1 5 17224609 86123045