Base | Representation |
---|---|
bin | 11100001011110101… |
… | …101110010001111001 |
3 | 2220010002221012020112 |
4 | 130023311232101321 |
5 | 443434412404031 |
6 | 21523001434105 |
7 | 2120645454332 |
oct | 341365562171 |
9 | 86102835215 |
10 | 30263403641 |
11 | 1191a9a2099 |
12 | 5a4719b935 |
13 | 2b13b1b643 |
14 | 1671413289 |
15 | bc1d0962b |
hex | 70bd6e479 |
30263403641 has 4 divisors (see below), whose sum is σ = 30265406352. Its totient is φ = 30261400932.
The previous prime is 30263403601. The next prime is 30263403671. The reversal of 30263403641 is 14630436203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14630436203 = 149 ⋅98190847.
It is a cyclic number.
It is not a de Polignac number, because 30263403641 - 214 = 30263387257 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30263403598 and 30263403607.
It is not an unprimeable number, because it can be changed into a prime (30263403601) 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, 978515 + ... + 1008968.
It is an arithmetic number, because the mean of its divisors is an integer number (7566351588).
Almost surely, 230263403641 is an apocalyptic number.
It is an amenable number.
30263403641 is a deficient number, since it is larger than the sum of its proper divisors (2002711).
30263403641 is a wasteful number, since it uses less digits than its factorization.
30263403641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2002710.
The product of its (nonzero) digits is 31104, while the sum is 32.
Adding to 30263403641 its reverse (14630436203), we get a palindrome (44893839844).
The spelling of 30263403641 in words is "thirty billion, two hundred sixty-three million, four hundred three thousand, six hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •