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80853060850 = 25253121325153
BaseRepresentation
bin100101101001100110…
…1111100110011110010
321201200210022001111021
41023103031330303302
52311041340421400
6101050545410054
75561420451322
oct1132315746362
9251623261437
1080853060850
1131320499351
121380563992a
137816aa5353
143cb0197282
15218332771a
hex12d337ccf2

80853060850 has 48 divisors (see below), whose sum is σ = 153356593032. Its totient is φ = 31703592960.

The previous prime is 80853060823. The next prime is 80853060853. The reversal of 80853060850 is 5806035808.

It can be written as a sum of positive squares in 12 ways, for example, as 794056041 + 80059004809 = 28179^2 + 282947^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80853060797 and 80853060806.

It is not an unprimeable number, because it can be changed into a prime (80853060853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3201874 + ... + 3227026.

Almost surely, 280853060850 is an apocalyptic number.

80853060850 is a deficient number, since it is larger than the sum of its proper divisors (72503532182).

80853060850 is a wasteful number, since it uses less digits than its factorization.

80853060850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26431 (or 26426 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 80853060850 in words is "eighty billion, eight hundred fifty-three million, sixty thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 53 106 265 530 1213 1325 2426 2650 6065 12130 25153 30325 50306 60650 64289 125765 128578 251530 321445 628825 642890 1257650 1333109 1607225 2666218 3214450 6665545 13331090 30510589 33327725 61021178 66655450 152552945 305105890 762764725 1525529450 1617061217 3234122434 8085306085 16170612170 40426530425 80853060850