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80408880884 = 2220102220221
BaseRepresentation
bin100101011100010111…
…1100010011011110100
321200112211111101010102
41022320233202123310
52304134133142014
6100534521213232
75544415132103
oct1127057423364
9250484441112
1080408880884
1131112798372
1213700931218
137775a65777
143c6b1b203a
1521593388de
hex12b8be26f4

80408880884 has 6 divisors (see below), whose sum is σ = 140715541554. Its totient is φ = 40204440440.

The previous prime is 80408880883. The next prime is 80408880901. The reversal of 80408880884 is 48808880408.

It can be written as a sum of positive squares in only one way, i.e., 73564627984 + 6844252900 = 271228^2 + 82730^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80408880883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051110107 + ... + 10051110114.

It is an arithmetic number, because the mean of its divisors is an integer number (23452590259).

Almost surely, 280408880884 is an apocalyptic number.

It is an amenable number.

80408880884 is a deficient number, since it is larger than the sum of its proper divisors (60306660670).

80408880884 is a wasteful number, since it uses less digits than its factorization.

80408880884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20102220225 (or 20102220223 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 56.

The spelling of 80408880884 in words is "eighty billion, four hundred eight million, eight hundred eighty thousand, eight hundred eighty-four".

Divisors: 1 2 4 20102220221 40204440442 80408880884