Base | Representation |
---|---|
bin | 10111110010111001… |
… | …101000100010101111 |
3 | 2102221121220001112022 |
4 | 113302321220202233 |
5 | 404311301443043 |
6 | 15423145500355 |
7 | 1563103452236 |
oct | 276271504257 |
9 | 72847801468 |
10 | 25550031023 |
11 | a921365520 |
12 | 4b507a16bb |
13 | 2542487b6a |
14 | 1345443b1d |
15 | 9e811e868 |
hex | 5f2e688af |
25550031023 has 8 divisors (see below), whose sum is σ = 28626079440. Its totient is φ = 22599535680.
The previous prime is 25550031011. The next prime is 25550031061. The reversal of 25550031023 is 32013005552.
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 25550031023 - 216 = 25549965487 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 25550030983 and 25550031001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25550091023) 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, 31387838 + ... + 31388651.
It is an arithmetic number, because the mean of its divisors is an integer number (3578259930).
Almost surely, 225550031023 is an apocalyptic number.
25550031023 is a deficient number, since it is larger than the sum of its proper divisors (3076048417).
25550031023 is a wasteful number, since it uses less digits than its factorization.
25550031023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62776537.
The product of its (nonzero) digits is 4500, while the sum is 26.
Adding to 25550031023 its reverse (32013005552), we get a palindrome (57563036575).
The spelling of 25550031023 in words is "twenty-five billion, five hundred fifty million, thirty-one thousand, twenty-three".
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