Base | Representation |
---|---|
bin | 1000010000010… |
… | …01110000010001 |
3 | 11211022001121112 |
4 | 10020021300101 |
5 | 120211332334 |
6 | 10512103105 |
7 | 1500403202 |
oct | 410116021 |
9 | 154261545 |
10 | 69245969 |
11 | 360a6581 |
12 | 1b234a95 |
13 | 11466560 |
14 | 92a75a9 |
15 | 612c4ce |
hex | 4209c11 |
69245969 has 8 divisors (see below), whose sum is σ = 74895912. Its totient is φ = 63642240.
The previous prime is 69245963. The next prime is 69245977. The reversal of 69245969 is 96954296.
It can be written as a sum of positive squares in 4 ways, for example, as 6250000 + 62995969 = 2500^2 + 7937^2 .
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 69245969 - 224 = 52468753 is a prime.
It is a super-2 number, since 2×692459692 = 9590008445497922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (69245963) 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, 8402 + ... + 14459.
It is an arithmetic number, because the mean of its divisors is an integer number (9361989).
Almost surely, 269245969 is an apocalyptic number.
It is an amenable number.
69245969 is a deficient number, since it is larger than the sum of its proper divisors (5649943).
69245969 is a wasteful number, since it uses less digits than its factorization.
69245969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23107.
The product of its digits is 1049760, while the sum is 50.
The square root of 69245969 is about 8321.4162857052. The cubic root of 69245969 is about 410.6433860412.
The spelling of 69245969 in words is "sixty-nine million, two hundred forty-five thousand, nine hundred sixty-nine".
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