Base | Representation |
---|---|
bin | 11100001110110011… |
… | …101110110010110111 |
3 | 2220020120122202222201 |
4 | 130032303232302313 |
5 | 444040140304421 |
6 | 21531541205331 |
7 | 2122122026416 |
oct | 341663566267 |
9 | 86216582881 |
10 | 30313213111 |
11 | 11946022745 |
12 | 5a5ba00847 |
13 | 2b2123b0bc |
14 | 1677c9b47d |
15 | bc6397b91 |
hex | 70eceecb7 |
30313213111 has 16 divisors (see below), whose sum is σ = 33864168960. Its totient is φ = 26965664640.
The previous prime is 30313213109. The next prime is 30313213121. The reversal of 30313213111 is 11131231303.
It is a cyclic number.
It is not a de Polignac number, because 30313213111 - 21 = 30313213109 is a prime.
It is a super-2 number, since 2×303132131112 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30313213121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30340 + ... + 248086.
It is an arithmetic number, because the mean of its divisors is an integer number (2116510560).
Almost surely, 230313213111 is an apocalyptic number.
30313213111 is a deficient number, since it is larger than the sum of its proper divisors (3550955849).
30313213111 is a wasteful number, since it uses less digits than its factorization.
30313213111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 218214.
The product of its (nonzero) digits is 162, while the sum is 19.
Adding to 30313213111 its reverse (11131231303), we get a palindrome (41444444414).
The spelling of 30313213111 in words is "thirty billion, three hundred thirteen million, two hundred thirteen thousand, one hundred eleven".
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