Base | Representation |
---|---|
bin | 1011110110011101000110… |
… | …1101010101100001000000 |
3 | 1201010200002211211010100102 |
4 | 2331213101231111201000 |
5 | 3201441223424202040 |
6 | 43413545320141532 |
7 | 2513253236445311 |
oct | 275472155254100 |
9 | 51120084733312 |
10 | 13030154131520 |
11 | 417406a348049 |
12 | 15653b83078a8 |
13 | 736979c67aa6 |
14 | 33093cb12608 |
15 | 178e26aa9515 |
hex | bd9d1b55840 |
13030154131520 has 28 divisors (see below), whose sum is σ = 31028054526444. Its totient is φ = 5212061652480.
The previous prime is 13030154131459. The next prime is 13030154131529. The reversal of 13030154131520 is 2513145103031.
It can be written as a sum of positive squares in 2 ways, for example, as 5389529399296 + 7640624732224 = 2321536^2 + 2764168^2 .
It is not an unprimeable number, because it can be changed into a prime (13030154131529) 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, 20359615511 + ... + 20359616150.
Almost surely, 213030154131520 is an apocalyptic number.
13030154131520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13030154131520 is an abundant number, since it is smaller than the sum of its proper divisors (17997900394924).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13030154131520 is an equidigital number, since it uses as much as digits as its factorization.
13030154131520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40719231678 (or 40719231668 counting only the distinct ones).
The product of its (nonzero) digits is 5400, while the sum is 29.
Adding to 13030154131520 its reverse (2513145103031), we get a palindrome (15543299234551).
The spelling of 13030154131520 in words is "thirteen trillion, thirty billion, one hundred fifty-four million, one hundred thirty-one thousand, five hundred twenty".
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