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80767818672052 = 22292441285241417
BaseRepresentation
bin10010010111010100111001…
…001001000010011110110100
3101120222022212011010220211111
4102113110321021002132310
541041244443040001202
6443440120151244404
723004165561132661
oct2227247111023664
9346868764126744
1080767818672052
112380a492033936
129085417079704
13360b4ac851cb5
1415d327ccd4a68
15950e528726d7
hex4975392427b4

80767818672052 has 24 divisors (see below), whose sum is σ = 146277503978760. Its totient is φ = 38975387082240.

The previous prime is 80767818672011. The next prime is 80767818672083. The reversal of 80767818672052 is 25027681876708.

It can be written as a sum of positive squares in 4 ways, for example, as 15538386399376 + 65229432272676 = 3941876^2 + 8076474^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142337553 + ... + 142903864.

It is an arithmetic number, because the mean of its divisors is an integer number (6094895999115).

Almost surely, 280767818672052 is an apocalyptic number.

It is an amenable number.

80767818672052 is a deficient number, since it is larger than the sum of its proper divisors (65509685306708).

80767818672052 is a wasteful number, since it uses less digits than its factorization.

80767818672052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285243891 (or 285243889 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 67.

The spelling of 80767818672052 in words is "eighty trillion, seven hundred sixty-seven billion, eight hundred eighteen million, six hundred seventy-two thousand, fifty-two".

Divisors: 1 2 4 29 58 116 2441 4882 9764 70789 141578 283156 285241417 570482834 1140965668 8272001093 16544002186 33088004372 696274298897 1392548597794 2785097195588 20191954668013 40383909336026 80767818672052