Base | Representation |
---|---|
bin | 101010010101011… |
… | …0101010011010101 |
3 | 10122222221121120210 |
4 | 1110222311103111 |
5 | 10402122431032 |
6 | 352542320033 |
7 | 50126113512 |
oct | 12452652325 |
9 | 3588847523 |
10 | 1420514517 |
11 | 669930644 |
12 | 337889019 |
13 | 1983b2146 |
14 | d6932309 |
15 | 84a982cc |
hex | 54ab54d5 |
1420514517 has 4 divisors (see below), whose sum is σ = 1894019360. Its totient is φ = 947009676.
The previous prime is 1420514507. The next prime is 1420514527. The reversal of 1420514517 is 7154150241.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is an interprime number because it is at equal distance from previous prime (1420514507) and next prime (1420514527).
It is not a de Polignac number, because 1420514517 - 218 = 1420252373 is a prime.
It is a super-2 number, since 2×14205145172 = 4035722986015486578, which 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 (1420514507) 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, 236752417 + ... + 236752422.
It is an arithmetic number, because the mean of its divisors is an integer number (473504840).
Almost surely, 21420514517 is an apocalyptic number.
It is an amenable number.
1420514517 is a deficient number, since it is larger than the sum of its proper divisors (473504843).
1420514517 is an equidigital number, since it uses as much as digits as its factorization.
1420514517 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 473504842.
The product of its (nonzero) digits is 5600, while the sum is 30.
The square root of 1420514517 is about 37689.7136762804. The cubic root of 1420514517 is about 1124.1266023076.
Adding to 1420514517 its reverse (7154150241), we get a palindrome (8574664758).
The spelling of 1420514517 in words is "one billion, four hundred twenty million, five hundred fourteen thousand, five hundred seventeen".
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