Base | Representation |
---|---|
bin | 1110100111100… |
… | …1000010001101 |
3 | 11021101000211222 |
4 | 3221321002031 |
5 | 111144010130 |
6 | 10030053125 |
7 | 1343103404 |
oct | 351710215 |
9 | 137330758 |
10 | 61313165 |
11 | 31678541 |
12 | 1864a1a5 |
13 | c9198a4 |
14 | 820063b |
15 | 55b1ce5 |
hex | 3a7908d |
61313165 has 8 divisors (see below), whose sum is σ = 73789920. Its totient is φ = 48907792.
The previous prime is 61313159. The next prime is 61313167. The reversal of 61313165 is 56131316.
61313165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 61313165 - 212 = 61309069 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (61313167) 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 7 ways as a sum of consecutive naturals, for example, 15935 + ... + 19404.
It is an arithmetic number, because the mean of its divisors is an integer number (9223740).
Almost surely, 261313165 is an apocalyptic number.
It is an amenable number.
61313165 is a deficient number, since it is larger than the sum of its proper divisors (12476755).
61313165 is a wasteful number, since it uses less digits than its factorization.
61313165 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35691.
The product of its digits is 1620, while the sum is 26.
The square root of 61313165 is about 7830.2723451998. The cubic root of 61313165 is about 394.3222153111.
The spelling of 61313165 in words is "sixty-one million, three hundred thirteen thousand, one hundred sixty-five".
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