Base | Representation |
---|---|
bin | 11101001101001011001101 |
3 | 112101222020210 |
4 | 131031023031 |
5 | 3424444031 |
6 | 432033033 |
7 | 122035053 |
oct | 35151315 |
9 | 15358223 |
10 | 7656141 |
11 | 435a199 |
12 | 2692779 |
13 | 1780a7c |
14 | 10341d3 |
15 | a13746 |
hex | 74d2cd |
7656141 has 4 divisors (see below), whose sum is σ = 10208192. Its totient is φ = 5104092.
The previous prime is 7656133. The next prime is 7656149. The reversal of 7656141 is 1416567.
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, and also an emirpimes, since its reverse is a distinct semiprime: 1416567 = 3 ⋅472189.
It is an interprime number because it is at equal distance from previous prime (7656133) and next prime (7656149).
It is not a de Polignac number, because 7656141 - 23 = 7656133 is a prime.
It is an Ulam number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
7656141 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 7656099 and 7656108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7656149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276021 + ... + 1276026.
It is an arithmetic number, because the mean of its divisors is an integer number (2552048).
Almost surely, 27656141 is an apocalyptic number.
It is an amenable number.
7656141 is a deficient number, since it is larger than the sum of its proper divisors (2552051).
7656141 is a wasteful number, since it uses less digits than its factorization.
7656141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2552050.
The product of its digits is 5040, while the sum is 30.
The square root of 7656141 is about 2766.9732561049. The cubic root of 7656141 is about 197.0924437511.
The spelling of 7656141 in words is "seven million, six hundred fifty-six thousand, one hundred forty-one".
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