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80773437930 = 235371391513467
BaseRepresentation
bin100101100111001111…
…0001101100111101010
321201111020110210101020
41023032132031213222
52310411000003210
6101035023033310
75556432615453
oct1131636154752
9251436423336
1080773437930
113128a555489
12137a2a3b836
1378034477b3
143ca378c12a
15217b34a770
hex12ce78d9ea

80773437930 has 128 divisors (see below), whose sum is σ = 201914173440. Its totient is φ = 20662905600.

The previous prime is 80773437929. The next prime is 80773437937. The reversal of 80773437930 is 3973437708.

It is not an unprimeable number, because it can be changed into a prime (80773437937) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23296057 + ... + 23299523.

It is an arithmetic number, because the mean of its divisors is an integer number (1577454480).

Almost surely, 280773437930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80773437930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100957086720).

80773437930 is an abundant number, since it is smaller than the sum of its proper divisors (121140735510).

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

80773437930 is a wasteful number, since it uses less digits than its factorization.

80773437930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804.

The product of its (nonzero) digits is 2667168, while the sum is 51.

The spelling of 80773437930 in words is "eighty billion, seven hundred seventy-three million, four hundred thirty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 139 151 185 222 278 302 370 417 453 555 695 755 834 906 1110 1390 1510 2085 2265 3467 4170 4530 5143 5587 6934 10286 10401 11174 15429 16761 17335 20802 20989 25715 27935 30858 33522 34670 41978 51430 52005 55870 62967 77145 83805 104010 104945 125934 128279 154290 167610 209890 256558 314835 384837 481913 523517 629670 641395 769674 776593 963826 1047034 1282790 1445739 1553186 1570551 1924185 2329779 2409565 2617585 2891478 3141102 3848370 3882965 4659558 4819130 5235170 7228695 7765930 7852755 11648895 14457390 15705510 17830781 19370129 23297790 35661562 38740258 53492343 58110387 72768863 89153905 96850645 106984686 116220774 145537726 178307810 193701290 218306589 267461715 290551935 363844315 436613178 534923430 581103870 727688630 1091532945 2183065890 2692447931 5384895862 8077343793 13462239655 16154687586 26924479310 40386718965 80773437930