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80807401340 = 22537109199191
BaseRepresentation
bin100101101000001111…
…1110001011101111100
321201120121101022102022
41023100133301131330
52310443143320330
6101042235015312
75560324402241
oct1132037613574
9251517338368
1080807401340
11312a7742716
12137b229a538
13780a4a97a3
143ca80ad5c8
15217e308ae5
hex12d07f177c

80807401340 has 24 divisors (see below), whose sum is σ = 174281910432. Its totient is φ = 31449366720.

The previous prime is 80807401327. The next prime is 80807401343. The reversal of 80807401340 is 4310470808.

It is a happy number.

It is a super-2 number, since 2×808074013402 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80807401340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80807401343) 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, 54598856 + ... + 54600335.

It is an arithmetic number, because the mean of its divisors is an integer number (7261746268).

Almost surely, 280807401340 is an apocalyptic number.

It is an amenable number.

80807401340 is an abundant number, since it is smaller than the sum of its proper divisors (93474509092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80807401340 is a wasteful number, since it uses less digits than its factorization.

80807401340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109199237 (or 109199235 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 80807401340 in words is "eighty billion, eight hundred seven million, four hundred one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 109199191 218398382 436796764 545995955 1091991910 2183983820 4040370067 8080740134 16161480268 20201850335 40403700670 80807401340