Base | Representation |
---|---|
bin | 11010110100010101101001 |
3 | 111020011111212 |
4 | 122310111221 |
5 | 3244430441 |
6 | 410402505 |
7 | 113516660 |
oct | 32642551 |
9 | 14204455 |
10 | 7030121 |
11 | 3a7191a |
12 | 2430435 |
13 | 15c1b47 |
14 | d0ddd7 |
15 | 93ceeb |
hex | 6b4569 |
7030121 has 4 divisors (see below), whose sum is σ = 8034432. Its totient is φ = 6025812.
The previous prime is 7030117. The next prime is 7030123. The reversal of 7030121 is 1210307.
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 7030121 - 22 = 7030117 is a prime.
It is an Ulam number.
It is an alternating number because its digits alternate between odd and even.
It is a junction number, because it is equal to n+sod(n) for n = 7030096 and 7030105.
It is not an unprimeable number, because it can be changed into a prime (7030123) 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, 502145 + ... + 502158.
It is an arithmetic number, because the mean of its divisors is an integer number (2008608).
Almost surely, 27030121 is an apocalyptic number.
It is an amenable number.
7030121 is a deficient number, since it is larger than the sum of its proper divisors (1004311).
7030121 is a wasteful number, since it uses less digits than its factorization.
7030121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1004310.
The product of its (nonzero) digits is 42, while the sum is 14.
The square root of 7030121 is about 2651.4375346215. The cubic root of 7030121 is about 191.5671037617.
Adding to 7030121 its reverse (1210307), we get a palindrome (8240428).
The spelling of 7030121 in words is "seven million, thirty thousand, one hundred twenty-one".
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