Base | Representation |
---|---|
bin | 10010010100111101100001… |
… | …000110010010000111100001 |
3 | 101120101210022120111011000021 |
4 | 102110331201012102013201 |
5 | 41031114103222443212 |
6 | 443233315441353441 |
7 | 22656352662453640 |
oct | 2224754106220741 |
9 | 346353276434007 |
10 | 80605280281057 |
11 | 23757564385a84 |
12 | 9059a15338881 |
13 | 35c907873388c |
14 | 15c9460219357 |
15 | 94badd124307 |
hex | 494f611921e1 |
80605280281057 has 16 divisors (see below), whose sum is σ = 95096741336064. Its totient is φ = 66858149376000.
The previous prime is 80605280281033. The next prime is 80605280281061. The reversal of 80605280281057 is 75018208250608.
It is not a de Polignac number, because 80605280281057 - 211 = 80605280279009 is a prime.
It is a super-2 number, since 2×806052802810572 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80605280280995 and 80605280281013.
It is not an unprimeable number, because it can be changed into a prime (80605280281067) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5055244 + ... + 13666237.
It is an arithmetic number, because the mean of its divisors is an integer number (5943546333504).
Almost surely, 280605280281057 is an apocalyptic number.
It is an amenable number.
80605280281057 is a deficient number, since it is larger than the sum of its proper divisors (14491461055007).
80605280281057 is a wasteful number, since it uses less digits than its factorization.
80605280281057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18741360.
The product of its (nonzero) digits is 2150400, while the sum is 52.
The spelling of 80605280281057 in words is "eighty trillion, six hundred five billion, two hundred eighty million, two hundred eighty-one thousand, fifty-seven".
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