Base | Representation |
---|---|
bin | 10010101000011111… |
… | …100110001011111111 |
3 | 1220122022011220022210 |
4 | 102220133212023333 |
5 | 311433210134401 |
6 | 13105125311503 |
7 | 1305533231265 |
oct | 225037461377 |
9 | 56568156283 |
10 | 20006724351 |
11 | 8537302139 |
12 | 3a64265593 |
13 | 1b6abc0543 |
14 | d7b156435 |
15 | 7c16484d6 |
hex | 4a87e62ff |
20006724351 has 8 divisors (see below), whose sum is σ = 26677400320. Its totient is φ = 13336932312.
The previous prime is 20006724349. The next prime is 20006724359. The reversal of 20006724351 is 15342760002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20006724351 - 21 = 20006724349 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 (20006724359) 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, 166231 + ... + 260088.
It is an arithmetic number, because the mean of its divisors is an integer number (3334675040).
Almost surely, 220006724351 is an apocalyptic number.
20006724351 is a deficient number, since it is larger than the sum of its proper divisors (6670675969).
20006724351 is a wasteful number, since it uses less digits than its factorization.
20006724351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 441965.
The product of its (nonzero) digits is 10080, while the sum is 30.
The spelling of 20006724351 in words is "twenty billion, six million, seven hundred twenty-four thousand, three hundred fifty-one".
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