Base | Representation |
---|---|
bin | 10011100100110000000… |
… | …000111011111010100111 |
3 | 11202121000110000000110021 |
4 | 103210300000323322213 |
5 | 134014311330043211 |
6 | 2505535550540011 |
7 | 166116404013130 |
oct | 23446000737247 |
9 | 4677013000407 |
10 | 1345130315431 |
11 | 479514aa5141 |
12 | 198841507607 |
13 | 99acb0047b6 |
14 | 4916725ac87 |
15 | 24ecb005771 |
hex | 1393003bea7 |
1345130315431 has 32 divisors (see below), whose sum is σ = 1552607198208. Its totient is φ = 1141555714560.
The previous prime is 1345130315423. The next prime is 1345130315447.
1345130315431 is nontrivially palindromic in base 10.
It is a cyclic number.
It is not a de Polignac number, because 1345130315431 - 23 = 1345130315423 is a prime.
It is a super-2 number, since 2×13451303154312 (a number of 25 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 (1345130315401) 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, 247127596 + ... + 247133038.
It is an arithmetic number, because the mean of its divisors is an integer number (48518974944).
Almost surely, 21345130315431 is an apocalyptic number.
1345130315431 is a deficient number, since it is larger than the sum of its proper divisors (207476882777).
1345130315431 is a wasteful number, since it uses less digits than its factorization.
1345130315431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6511.
The product of its (nonzero) digits is 32400, while the sum is 34.
The spelling of 1345130315431 in words is "one trillion, three hundred forty-five billion, one hundred thirty million, three hundred fifteen thousand, four hundred thirty-one".
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