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80471248864 = 2518311373417
BaseRepresentation
bin100101011110001110…
…1011100111111100000
321200201011211222220121
41022330131130333200
52304301114430424
6100545030050024
75546103220666
oct1127435347740
9250634758817
1080471248864
1131144a16356
12137197a9914
1377859614b6
143c755a8c36
15215ea57ee4
hex12bc75cfe0

80471248864 has 24 divisors (see below), whose sum is σ = 158514411888. Its totient is φ = 40213620480.

The previous prime is 80471248817. The next prime is 80471248901. The reversal of 80471248864 is 46884217408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628117 + ... + 745300.

It is an arithmetic number, because the mean of its divisors is an integer number (6604767162).

Almost surely, 280471248864 is an apocalyptic number.

It is an amenable number.

80471248864 is a deficient number, since it is larger than the sum of its proper divisors (78043163024).

80471248864 is a wasteful number, since it uses less digits than its factorization.

80471248864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375258 (or 1375250 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 80471248864 in words is "eighty billion, four hundred seventy-one million, two hundred forty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 1831 3662 7324 14648 29296 58592 1373417 2746834 5493668 10987336 21974672 43949344 2514726527 5029453054 10058906108 20117812216 40235624432 80471248864