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80615374444 = 2211315141881
BaseRepresentation
bin100101100010100001…
…1001111111001101100
321201002020001100001001
41023011003033321230
52310100013440234
6101011215130044
75552503243123
oct1130503177154
9251066040031
1080615374444
1131209306000
1213759b13924
1377a97845c7
143c8a7a4aba
15216c526d14
hex12c50cfe6c

80615374444 has 24 divisors (see below), whose sum is σ = 155174006736. Its totient is φ = 36643349600.

The previous prime is 80615374421. The next prime is 80615374519. The reversal of 80615374444 is 44447351608.

It is a junction number, because it is equal to n+sod(n) for n = 80615374394 and 80615374403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7565617 + ... + 7576264.

It is an arithmetic number, because the mean of its divisors is an integer number (6465583614).

Almost surely, 280615374444 is an apocalyptic number.

It is an amenable number.

80615374444 is a deficient number, since it is larger than the sum of its proper divisors (74558632292).

80615374444 is a wasteful number, since it uses less digits than its factorization.

80615374444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15141918 (or 15141894 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 80615374444 in words is "eighty billion, six hundred fifteen million, three hundred seventy-four thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 121 242 484 1331 2662 5324 15141881 30283762 60567524 166560691 333121382 666242764 1832167601 3664335202 7328670404 20153843611 40307687222 80615374444