Base | Representation |
---|---|
bin | 10101000101011010… |
… | …011011111010111101 |
3 | 2011102210000101211100 |
4 | 111011122123322331 |
5 | 332331141110433 |
6 | 14222252443313 |
7 | 1431011451402 |
oct | 250532337275 |
9 | 64383011740 |
10 | 22639394493 |
11 | 9668391191 |
12 | 4479a79539 |
13 | 219a461921 |
14 | 114aa602a9 |
15 | 8c782db13 |
hex | 54569bebd |
22639394493 has 12 divisors (see below), whose sum is σ = 32715789340. Its totient is φ = 15086264256.
The previous prime is 22639394489. The next prime is 22639394497. The reversal of 22639394493 is 39449393622.
22639394493 is a `hidden beast` number, since 2 + 2 + 63 + 9 + 3 + 94 + 493 = 666.
It is an interprime number because it is at equal distance from previous prime (22639394489) and next prime (22639394497).
It can be written as a sum of positive squares in 2 ways, for example, as 3557287449 + 19082107044 = 59643^2 + 138138^2 .
It is not a de Polignac number, because 22639394493 - 22 = 22639394489 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22639394497) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 533896 + ... + 574737.
Almost surely, 222639394493 is an apocalyptic number.
It is an amenable number.
22639394493 is a deficient number, since it is larger than the sum of its proper divisors (10076394847).
22639394493 is a wasteful number, since it uses less digits than its factorization.
22639394493 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1110908 (or 1110905 counting only the distinct ones).
The product of its digits is 7558272, while the sum is 54.
The spelling of 22639394493 in words is "twenty-two billion, six hundred thirty-nine million, three hundred ninety-four thousand, four hundred ninety-three".
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