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86515119049 = 721111997659
BaseRepresentation
bin101000010010010110…
…0111111001111001001
322021022101110102011111
41100210230333033021
52404140332302144
6103424451130321
76151632243532
oct1204454771711
9267271412144
1086515119049
1133766590497
12149258a39a1
138209b4a548
14428a157689
1523b5459534
hex1424b3f3c9

86515119049 has 4 divisors (see below), whose sum is σ = 86527123920. Its totient is φ = 86503114180.

The previous prime is 86515119017. The next prime is 86515119073. The reversal of 86515119049 is 94091151568.

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 not a de Polignac number, because 86515119049 - 25 = 86515119017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86515118993 and 86515119011.

It is not an unprimeable number, because it can be changed into a prime (86515119079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5991619 + ... + 6006040.

It is an arithmetic number, because the mean of its divisors is an integer number (21631780980).

Almost surely, 286515119049 is an apocalyptic number.

It is an amenable number.

86515119049 is a deficient number, since it is larger than the sum of its proper divisors (12004871).

86515119049 is a wasteful number, since it uses less digits than its factorization.

86515119049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004870.

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 86515119049 in words is "eighty-six billion, five hundred fifteen million, one hundred nineteen thousand, forty-nine".

Divisors: 1 7211 11997659 86515119049