Base | Representation |
---|---|
bin | 100101101010111000… |
… | …1100101101100110101 |
3 | 21201210210000110001200 |
4 | 1023111301211230311 |
5 | 2311133331122223 |
6 | 101055121043113 |
7 | 5562451203336 |
oct | 1132561455465 |
9 | 251723013050 |
10 | 80895957813 |
11 | 31342728490 |
12 | 13817a86499 |
13 | 7822944678 |
14 | 3cb5b6228d |
15 | 2186e9ca43 |
hex | 12d5c65b35 |
80895957813 has 24 divisors (see below), whose sum is σ = 127932650976. Its totient is φ = 48850840800.
The previous prime is 80895957809. The next prime is 80895957817. The reversal of 80895957813 is 31875959808.
80895957813 is a `hidden beast` number, since 8 + 0 + 8 + 9 + 59 + 578 + 1 + 3 = 666.
It is an interprime number because it is at equal distance from previous prime (80895957809) and next prime (80895957817).
It is not a de Polignac number, because 80895957813 - 22 = 80895957809 is a prime.
It is a super-3 number, since 3×808959578133 (a number of 34 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80895957817) 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, 1447543 + ... + 1502388.
It is an arithmetic number, because the mean of its divisors is an integer number (5330527124).
Almost surely, 280895957813 is an apocalyptic number.
It is an amenable number.
80895957813 is a deficient number, since it is larger than the sum of its proper divisors (47036693163).
80895957813 is a wasteful number, since it uses less digits than its factorization.
80895957813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2950225 (or 2950222 counting only the distinct ones).
The product of its (nonzero) digits is 21772800, while the sum is 63.
The spelling of 80895957813 in words is "eighty billion, eight hundred ninety-five million, nine hundred fifty-seven thousand, eight hundred thirteen".
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