Base | Representation |
---|---|
bin | 10010110111001010… |
… | …000111010001100111 |
3 | 1221021110010100101002 |
4 | 102313022013101213 |
5 | 312434201012301 |
6 | 13145354423515 |
7 | 1314611354066 |
oct | 226712072147 |
9 | 57243110332 |
10 | 20252750951 |
11 | 8653171604 |
12 | 3b12731b9b |
13 | 1ba9b71504 |
14 | da1aba1dd |
15 | 7d804516b |
hex | 4b7287467 |
20252750951 has 4 divisors (see below), whose sum is σ = 20336787504. Its totient is φ = 20168714400.
The previous prime is 20252750933. The next prime is 20252750977. The reversal of 20252750951 is 15905725202.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20252750951 - 26 = 20252750887 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 (20252752951) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42017915 + ... + 42018396.
It is an arithmetic number, because the mean of its divisors is an integer number (5084196876).
Almost surely, 220252750951 is an apocalyptic number.
20252750951 is a deficient number, since it is larger than the sum of its proper divisors (84036553).
20252750951 is an equidigital number, since it uses as much as digits as its factorization.
20252750951 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84036552.
The product of its (nonzero) digits is 63000, while the sum is 38.
The spelling of 20252750951 in words is "twenty billion, two hundred fifty-two million, seven hundred fifty thousand, nine hundred fifty-one".
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