Base | Representation |
---|---|
bin | 1110100100000… |
… | …0110111001001 |
3 | 11020221100020100 |
4 | 3221000313021 |
5 | 111114124311 |
6 | 10021120013 |
7 | 1341124533 |
oct | 351006711 |
9 | 136840210 |
10 | 61083081 |
11 | 31530694 |
12 | 18559009 |
13 | c868c47 |
14 | 8180853 |
15 | 5568a56 |
hex | 3a40dc9 |
61083081 has 12 divisors (see below), whose sum is σ = 92875120. Its totient is φ = 38578680.
The previous prime is 61083067. The next prime is 61083097. The reversal of 61083081 is 18038016.
It is not a de Polignac number, because 61083081 - 25 = 61083049 is a prime.
It is a super-2 number, since 2×610830812 = 7462285568905122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (61083031) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178435 + ... + 178776.
Almost surely, 261083081 is an apocalyptic number.
It is an amenable number.
61083081 is a deficient number, since it is larger than the sum of its proper divisors (31792039).
61083081 is a wasteful number, since it uses less digits than its factorization.
61083081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 357236 (or 357233 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 61083081 is about 7815.5665821487. The cubic root of 61083081 is about 393.8283520570.
The spelling of 61083081 in words is "sixty-one million, eighty-three thousand, eighty-one".
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