Base | Representation |
---|---|
bin | 11100001000001100… |
… | …101011011000010101 |
3 | 2212221211222102120001 |
4 | 130020030223120111 |
5 | 443323242442323 |
6 | 21512540211301 |
7 | 2116304263243 |
oct | 341014533025 |
9 | 85854872501 |
10 | 30202312213 |
11 | 11899466207 |
12 | 5a2a839b31 |
13 | 2b0427b978 |
14 | 166726d793 |
15 | bbb78d3ad |
hex | 70832b615 |
30202312213 has 4 divisors (see below), whose sum is σ = 30203561088. Its totient is φ = 30201063340.
The previous prime is 30202312177. The next prime is 30202312219. The reversal of 30202312213 is 31221320203.
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.
It is a cyclic number.
It is not a de Polignac number, because 30202312213 - 213 = 30202304021 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 (30202312219) 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, 587431 + ... + 636772.
It is an arithmetic number, because the mean of its divisors is an integer number (7550890272).
Almost surely, 230202312213 is an apocalyptic number.
It is an amenable number.
30202312213 is a deficient number, since it is larger than the sum of its proper divisors (1248875).
30202312213 is a wasteful number, since it uses less digits than its factorization.
30202312213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1248874.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 30202312213 its reverse (31221320203), we get a palindrome (61423632416).
The spelling of 30202312213 in words is "thirty billion, two hundred two million, three hundred twelve thousand, two hundred thirteen".
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