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28968486824 = 238940686077
BaseRepresentation
bin11010111110101010…
…000000011110101000
32202202212022121022102
4122332222000132220
5433311413034244
621150303112532
72043603034544
oct327652003650
982685277272
1028968486824
1111315a56a02
1257455a2748
132968773284
14158b456a24
15b482c054e
hex6bea807a8

28968486824 has 16 divisors (see below), whose sum is σ = 54926205300. Its totient is φ = 14321498752.

The previous prime is 28968486823. The next prime is 28968486839. The reversal of 28968486824 is 42868486982.

It can be written as a sum of positive squares in 2 ways, for example, as 28591428100 + 377058724 = 169090^2 + 19418^2 .

It is not an unprimeable number, because it can be changed into a prime (28968486823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20342327 + ... + 20343750.

Almost surely, 228968486824 is an apocalyptic number.

It is an amenable number.

28968486824 is a deficient number, since it is larger than the sum of its proper divisors (25957718476).

28968486824 is a wasteful number, since it uses less digits than its factorization.

28968486824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40686172 (or 40686168 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 65.

The spelling of 28968486824 in words is "twenty-eight billion, nine hundred sixty-eight million, four hundred eighty-six thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 89 178 356 712 40686077 81372154 162744308 325488616 3621060853 7242121706 14484243412 28968486824