Base | Representation |
---|---|
bin | 1001100010100… |
… | …10101101011011 |
3 | 12120120222021122 |
4 | 10301102231123 |
5 | 130441434210 |
6 | 11535155455 |
7 | 1661151143 |
oct | 461225533 |
9 | 176528248 |
10 | 80030555 |
11 | 411a2160 |
12 | 22975b8b |
13 | 13771277 |
14 | a8b3923 |
15 | 705cb55 |
hex | 4c52b5b |
80030555 has 32 divisors (see below), whose sum is σ = 107688960. Its totient is φ = 56609280.
The previous prime is 80030551. The next prime is 80030567. The reversal of 80030555 is 55503008.
It is not a de Polignac number, because 80030555 - 22 = 80030551 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80030551) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490904 + ... + 491066.
It is an arithmetic number, because the mean of its divisors is an integer number (3365280).
Almost surely, 280030555 is an apocalyptic number.
80030555 is a deficient number, since it is larger than the sum of its proper divisors (27658405).
80030555 is a wasteful number, since it uses less digits than its factorization.
80030555 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 371.
The product of its (nonzero) digits is 3000, while the sum is 26.
The square root of 80030555 is about 8945.9798233620. The cubic root of 80030555 is about 430.9417883171.
The spelling of 80030555 in words is "eighty million, thirty thousand, five hundred fifty-five".
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