Base | Representation |
---|---|
bin | 100101011011011000… |
… | …1000110101111000001 |
3 | 21200110112010111122120 |
4 | 1022312301012233001 |
5 | 2304102142043111 |
6 | 100531334554453 |
7 | 5543533331400 |
oct | 1126661065701 |
9 | 250415114576 |
10 | 80375737281 |
11 | 310a6010064 |
12 | 136b1808a29 |
13 | 776bc2c978 |
14 | 3c66a25637 |
15 | 215648d406 |
hex | 12b6c46bc1 |
80375737281 has 24 divisors (see below), whose sum is σ = 126372157344. Its totient is φ = 45299822400.
The previous prime is 80375737271. The next prime is 80375737303. The reversal of 80375737281 is 18273757308.
It is not a de Polignac number, because 80375737281 - 25 = 80375737249 is a prime.
It is a super-2 number, since 2×803757372812 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (80375737271) 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, 3734295 + ... + 3755756.
It is an arithmetic number, because the mean of its divisors is an integer number (5265506556).
Almost surely, 280375737281 is an apocalyptic number.
It is an amenable number.
80375737281 is a deficient number, since it is larger than the sum of its proper divisors (45996420063).
80375737281 is a wasteful number, since it uses less digits than its factorization.
80375737281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7490141 (or 7490134 counting only the distinct ones).
The product of its (nonzero) digits is 1975680, while the sum is 51.
The spelling of 80375737281 in words is "eighty billion, three hundred seventy-five million, seven hundred thirty-seven thousand, two hundred eighty-one".
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