Base | Representation |
---|---|
bin | 10010101000101110… |
… | …011010110101010101 |
3 | 1220122120111022102220 |
4 | 102220232122311111 |
5 | 311440204010010 |
6 | 13105344452553 |
7 | 1305611243601 |
oct | 225056326525 |
9 | 56576438386 |
10 | 20010610005 |
11 | 8539516521 |
12 | 3a6561a159 |
13 | 1b6b951049 |
14 | d7b888501 |
15 | 7c1b64970 |
hex | 4a8b9ad55 |
20010610005 has 8 divisors (see below), whose sum is σ = 32016976032. Its totient is φ = 10672325328.
The previous prime is 20010610003. The next prime is 20010610013. The reversal of 20010610005 is 50001601002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20010610005 - 21 = 20010610003 is a prime.
It is a super-2 number, since 2×200106100052 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 1334040667 = 20010610005 / (2 + 0 + 0 + 1 + 0 + 6 + 1 + 0 + 0 + 0 + 5).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20010610003) 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, 667020319 + ... + 667020348.
It is an arithmetic number, because the mean of its divisors is an integer number (4002122004).
Almost surely, 220010610005 is an apocalyptic number.
It is an amenable number.
20010610005 is a deficient number, since it is larger than the sum of its proper divisors (12006366027).
20010610005 is a wasteful number, since it uses less digits than its factorization.
20010610005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1334040675.
The product of its (nonzero) digits is 60, while the sum is 15.
The spelling of 20010610005 in words is "twenty billion, ten million, six hundred ten thousand, five".
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