Base | Representation |
---|---|
bin | 1000001111010… |
… | …00001001101011 |
3 | 11211001001210211 |
4 | 10013220021223 |
5 | 120142431311 |
6 | 10505121551 |
7 | 1466261005 |
oct | 407501153 |
9 | 154031724 |
10 | 69108331 |
11 | 36012126 |
12 | 1b1892b7 |
13 | 11418a06 |
14 | 926d375 |
15 | 6101821 |
hex | 41e826b |
69108331 has 8 divisors (see below), whose sum is σ = 72243200. Its totient is φ = 66030120.
The previous prime is 69108313. The next prime is 69108337. The reversal of 69108331 is 13380196.
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 69108331 - 27 = 69108203 is a prime.
It is a super-2 number, since 2×691083312 = 9551922827211122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 69108293 and 69108302.
It is not an unprimeable number, because it can be changed into a prime (69108337) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11661 + ... + 16558.
It is an arithmetic number, because the mean of its divisors is an integer number (9030400).
Almost surely, 269108331 is an apocalyptic number.
69108331 is a deficient number, since it is larger than the sum of its proper divisors (3134869).
69108331 is a wasteful number, since it uses less digits than its factorization.
69108331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28329.
The product of its (nonzero) digits is 3888, while the sum is 31.
The square root of 69108331 is about 8313.1420654287. The cubic root of 69108331 is about 410.3711313317.
The spelling of 69108331 in words is "sixty-nine million, one hundred eight thousand, three hundred thirty-one".
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