Base | Representation |
---|---|
bin | 11010111101110011010001 |
3 | 111022010200102 |
4 | 122331303101 |
5 | 3302201011 |
6 | 411302145 |
7 | 114040661 |
oct | 32756321 |
9 | 14263612 |
10 | 7068881 |
11 | 3a98a56 |
12 | 244a955 |
13 | 1606691 |
14 | d201a1 |
15 | 94973b |
hex | 6bdcd1 |
7068881 has 4 divisors (see below), whose sum is σ = 7082352. Its totient is φ = 7055412.
The previous prime is 7068871. The next prime is 7068911. The reversal of 7068881 is 1888607.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 7068881 - 214 = 7052497 is a prime.
It is a super-2 number, since 2×70688812 = 99938157184322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7068871) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5915 + ... + 7008.
It is an arithmetic number, because the mean of its divisors is an integer number (1770588).
Almost surely, 27068881 is an apocalyptic number.
It is an amenable number.
7068881 is a deficient number, since it is larger than the sum of its proper divisors (13471).
7068881 is a wasteful number, since it uses less digits than its factorization.
7068881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13470.
The product of its (nonzero) digits is 21504, while the sum is 38.
The square root of 7068881 is about 2658.7367301032. The cubic root of 7068881 is about 191.9185219244.
The spelling of 7068881 in words is "seven million, sixty-eight thousand, eight hundred eighty-one".
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