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80805033582 = 23721328374707
BaseRepresentation
bin100101101000001011…
…0101111011001101110
321201120102221000110120
41023100112233121232
52310442042033312
6101042112145410
75560265311200
oct1132026573156
9251512830416
1080805033582
11312a6375799
12137b1538266
137809b5ab50
143ca7a54770
15217dedc28c
hex12d05af66e

80805033582 has 96 divisors (see below), whose sum is σ = 203174681472. Its totient is φ = 21235628736.

The previous prime is 80805033499. The next prime is 80805033583. The reversal of 80805033582 is 28533050808.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80805033583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1044273 + ... + 1118979.

It is an arithmetic number, because the mean of its divisors is an integer number (2116402932).

Almost surely, 280805033582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80805033582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101587340736).

80805033582 is an abundant number, since it is smaller than the sum of its proper divisors (122369647890).

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

80805033582 is a wasteful number, since it uses less digits than its factorization.

80805033582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75022 (or 75015 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 80805033582 in words is "eighty billion, eight hundred five million, thirty-three thousand, five hundred eighty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 49 78 91 98 147 182 273 283 294 546 566 637 849 1274 1698 1911 1981 3679 3822 3962 5943 7358 11037 11886 13867 22074 25753 27734 41601 51506 74707 77259 83202 149414 154518 180271 224121 360542 448242 522949 540813 971191 1045898 1081626 1568847 1942382 2913573 3137694 3660643 5827146 6798337 7321286 10981929 13596674 20395011 21142081 21963858 40790022 42284162 47588359 63426243 95176718 126852486 142765077 147994567 274847053 285530154 295989134 443983701 549694106 824541159 887967402 1035961969 1649082318 1923929371 2071923938 3107885907 3847858742 5771788113 6215771814 11543576226 13467505597 26935011194 40402516791 80805033582