Base | Representation |
---|---|
bin | 1101101001011111111111… |
… | …00000100001000000001100 |
3 | 10221021020101010111110220102 |
4 | 12310233333200201000030 |
5 | 12413214040120223040 |
6 | 143455515010310232 |
7 | 6215245436002640 |
oct | 664577740410014 |
9 | 127236333443812 |
10 | 30013223211020 |
11 | 962159a072225 |
12 | 344891b888378 |
13 | 1399308b3407a |
14 | 75a90d61ac20 |
15 | 370aa5b1c515 |
hex | 1b4bff82100c |
30013223211020 has 96 divisors (see below), whose sum is σ = 73751132302848. Its totient is φ = 10044907149312.
The previous prime is 30013223211017. The next prime is 30013223211029. The reversal of 30013223211020 is 2011232231003.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30013223210983 and 30013223211001.
It is not an unprimeable number, because it can be changed into a prime (30013223211029) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8539964 + ... + 11530716.
It is an arithmetic number, because the mean of its divisors is an integer number (768240961488).
Almost surely, 230013223211020 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30013223211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36875566151424).
30013223211020 is an abundant number, since it is smaller than the sum of its proper divisors (43737909091828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30013223211020 is a wasteful number, since it uses less digits than its factorization.
30013223211020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2992479 (or 2992477 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 30013223211020 its reverse (2011232231003), we get a palindrome (32024455442023).
The spelling of 30013223211020 in words is "thirty trillion, thirteen billion, two hundred twenty-three million, two hundred eleven thousand, twenty".
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