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80531532741140 = 22513309736664389
BaseRepresentation
bin10010010011111000110101…
…011001101111101000010100
3101120010201221222110221210222
4102103320311121233220110
541023412034340204030
6443135401515533512
722651132311636635
oct2223706531575024
9346121858427728
1080531532741140
112372925a863788
12904767345a298
1335c2124a8bbb0
1415c5a65a0988c
15949c23a0b3e5
hex493e3566fa14

80531532741140 has 24 divisors (see below), whose sum is σ = 182125158661320. Its totient is φ = 29734719781248.

The previous prime is 80531532741137. The next prime is 80531532741167. The reversal of 80531532741140 is 4114723513508.

It can be written as a sum of positive squares in 4 ways, for example, as 8199025199236 + 72332507541904 = 2863394^2 + 8504852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80531532741091 and 80531532741100.

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, 154868331935 + ... + 154868332454.

It is an arithmetic number, because the mean of its divisors is an integer number (7588548277555).

Almost surely, 280531532741140 is an apocalyptic number.

It is an amenable number.

80531532741140 is an abundant number, since it is smaller than the sum of its proper divisors (101593625920180).

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

80531532741140 is a wasteful number, since it uses less digits than its factorization.

80531532741140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309736664411 (or 309736664409 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 80531532741140 in words is "eighty trillion, five hundred thirty-one billion, five hundred thirty-two million, seven hundred forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 309736664389 619473328778 1238946657556 1548683321945 3097366643890 4026576637057 6194733287780 8053153274114 16106306548228 20132883185285 40265766370570 80531532741140