Base | Representation |
---|---|
bin | 10001110000001111100… |
… | …001011001001010100010 |
3 | 11022122010001210122111202 |
4 | 101300033201121022202 |
5 | 124442110431433010 |
6 | 2332250301041202 |
7 | 154100336306600 |
oct | 21601741311242 |
9 | 4278101718452 |
10 | 1220031124130 |
11 | 430459844135 |
12 | 178549b56202 |
13 | 8b08256c190 |
14 | 4309a9d2870 |
15 | 21b085536a5 |
hex | 11c0f8592a2 |
1220031124130 has 96 divisors (see below), whose sum is σ = 2755879395696. Its totient is φ = 385449394176.
The previous prime is 1220031124073. The next prime is 1220031124139. The reversal of 1220031124130 is 314211300221.
It can be written as a sum of positive squares in 8 ways, for example, as 861334342561 + 358696781569 = 928081^2 + 598913^2 .
It is a super-2 number, since 2×12200311241302 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1220031124139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3509522 + ... + 3841458.
Almost surely, 21220031124130 is an apocalyptic number.
1220031124130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220031124130 is an abundant number, since it is smaller than the sum of its proper divisors (1535848271566).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220031124130 is a wasteful number, since it uses less digits than its factorization.
1220031124130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 332548 (or 332541 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 1220031124130 its reverse (314211300221), we get a palindrome (1534242424351).
The spelling of 1220031124130 in words is "one trillion, two hundred twenty billion, thirty-one million, one hundred twenty-four thousand, one hundred thirty".
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