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80850000427 = 767763170447
BaseRepresentation
bin100101101001100001…
…0010001101000101011
321201200120112120101021
41023103002101220223
52311040100003202
6101050400033311
75561352443650
oct1132302215053
9251616476337
1080850000427
1131319798a79
1213804602837
137816273351
143cad9dbc27
152182e20a37
hex12d3091a2b

80850000427 has 8 divisors (see below), whose sum is σ = 92401906176. Its totient is φ = 69298571112.

The previous prime is 80850000397. The next prime is 80850000431. The reversal of 80850000427 is 72400005808.

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 80850000427 - 27 = 80850000299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80850000392 and 80850000401.

It is not an unprimeable number, because it can be changed into a prime (80850000437) 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, 389118 + ... + 559564.

It is an arithmetic number, because the mean of its divisors is an integer number (11550238272).

Almost surely, 280850000427 is an apocalyptic number.

80850000427 is a deficient number, since it is larger than the sum of its proper divisors (11551905749).

80850000427 is a wasteful number, since it uses less digits than its factorization.

80850000427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238217.

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 80850000427 in words is "eighty billion, eight hundred fifty million, four hundred twenty-seven", and thus it is an aban number.

Divisors: 1 7 67763 170447 474341 1193129 11550000061 80850000427