Base | Representation |
---|---|
bin | 100101101010011101… |
… | …0110000001110110111 |
3 | 21201202202222010120100 |
4 | 1023110322300032313 |
5 | 2311121141124111 |
6 | 101053445005143 |
7 | 5562215053344 |
oct | 1132472601667 |
9 | 251682863510 |
10 | 80881583031 |
11 | 313355aa4a7 |
12 | 138130b37b3 |
13 | 781c980792 |
14 | 3cb3c9d7cb |
15 | 2185aad756 |
hex | 12d4eb03b7 |
80881583031 has 6 divisors (see below), whose sum is σ = 116828953280. Its totient is φ = 53921055348.
The previous prime is 80881583023. The next prime is 80881583059. The reversal of 80881583031 is 13038518808.
It is a happy number.
It is not a de Polignac number, because 80881583031 - 23 = 80881583023 is a prime.
It is a super-2 number, since 2×808815830312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80881583011) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4493421271 + ... + 4493421288.
Almost surely, 280881583031 is an apocalyptic number.
80881583031 is a deficient number, since it is larger than the sum of its proper divisors (35947370249).
80881583031 is a wasteful number, since it uses less digits than its factorization.
80881583031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8986842565 (or 8986842562 counting only the distinct ones).
The product of its (nonzero) digits is 184320, while the sum is 45.
The spelling of 80881583031 in words is "eighty billion, eight hundred eighty-one million, five hundred eighty-three thousand, thirty-one".
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