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80485844489 = 2312727554209
BaseRepresentation
bin100101011110101010…
…1001000011000001001
321200202012022112100022
41022331111020120021
52304313334010424
6100550310550225
75546341250561
oct1127525103011
9250665275308
1080485844489
1131152185256
1213722668375
1377889a1a6b
143c774c7da1
152160e8c95e
hex12bd548609

80485844489 has 8 divisors (see below), whose sum is σ = 84646533120. Its totient is φ = 76380264576.

The previous prime is 80485844479. The next prime is 80485844513. The reversal of 80485844489 is 98444858408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80485844489 is a prime.

It is a super-2 number, since 2×804858444892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80485844419) 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, 13774184 + ... + 13780025.

It is an arithmetic number, because the mean of its divisors is an integer number (10580816640).

Almost surely, 280485844489 is an apocalyptic number.

It is an amenable number.

80485844489 is a deficient number, since it is larger than the sum of its proper divisors (4160688631).

80485844489 is a wasteful number, since it uses less digits than its factorization.

80485844489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27554359.

The product of its (nonzero) digits is 47185920, while the sum is 62.

The spelling of 80485844489 in words is "eighty billion, four hundred eighty-five million, eight hundred forty-four thousand, four hundred eighty-nine".

Divisors: 1 23 127 2921 27554209 633746807 3499384543 80485844489