Base | Representation |
---|---|
bin | 11100000101000101… |
… | …111011010111010111 |
3 | 2212211012221102011122 |
4 | 130011011323113113 |
5 | 443221423223111 |
6 | 21503435354155 |
7 | 2115102364613 |
oct | 340505732727 |
9 | 85735842148 |
10 | 30150211031 |
11 | 1187200a886 |
12 | 5a152b295b |
13 | 2ac6539075 |
14 | 166038a343 |
15 | bb6deacdb |
hex | 70517b5d7 |
30150211031 has 4 divisors (see below), whose sum is σ = 30154331064. Its totient is φ = 30146091000.
The previous prime is 30150210977. The next prime is 30150211037. The reversal of 30150211031 is 13011205103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13011205103 = 13 ⋅1000861931.
It is a cyclic number.
It is not a de Polignac number, because 30150211031 - 214 = 30150194647 is a prime.
It is a super-2 number, since 2×301502110312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30150211037) 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, 2049020 + ... + 2063681.
It is an arithmetic number, because the mean of its divisors is an integer number (7538582766).
Almost surely, 230150211031 is an apocalyptic number.
30150211031 is a deficient number, since it is larger than the sum of its proper divisors (4120033).
30150211031 is an equidigital number, since it uses as much as digits as its factorization.
30150211031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4120032.
The product of its (nonzero) digits is 90, while the sum is 17.
Adding to 30150211031 its reverse (13011205103), we get a palindrome (43161416134).
The spelling of 30150211031 in words is "thirty billion, one hundred fifty million, two hundred eleven thousand, thirty-one".
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