Base | Representation |
---|---|
bin | 1000010101000… |
… | …00111001110010 |
3 | 11212110111212100 |
4 | 10022200321302 |
5 | 120341140244 |
6 | 10533241230 |
7 | 1505562156 |
oct | 412407162 |
9 | 155414770 |
10 | 69865074 |
11 | 36489734 |
12 | 1b493216 |
13 | 116222a6 |
14 | 93c9066 |
15 | 6200b69 |
hex | 42a0e72 |
69865074 has 12 divisors (see below), whose sum is σ = 151374366. Its totient is φ = 23288352.
The previous prime is 69865073. The next prime is 69865079. The reversal of 69865074 is 47056896.
69865074 is a `hidden beast` number, since 69 + 86 + 507 + 4 = 666.
It can be written as a sum of positive squares in only one way, i.e., 69806025 + 59049 = 8355^2 + 243^2 .
It is a super-2 number, since 2×698650742 = 9762257130050952, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (69865073) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1940679 + ... + 1940714.
Almost surely, 269865074 is an apocalyptic number.
69865074 is an abundant number, since it is smaller than the sum of its proper divisors (81509292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69865074 is a wasteful number, since it uses less digits than its factorization.
69865074 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3881401 (or 3881398 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The square root of 69865074 is about 8358.5330052588. The cubic root of 69865074 is about 411.8635651237.
The spelling of 69865074 in words is "sixty-nine million, eight hundred sixty-five thousand, seventy-four".
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