Base | Representation |
---|---|
bin | 101010010101001… |
… | …1110110001010111 |
3 | 10122222202220222210 |
4 | 1110222132301113 |
5 | 10402112002411 |
6 | 352540324503 |
7 | 50125250454 |
oct | 12452366127 |
9 | 3588686883 |
10 | 1420422231 |
11 | 669878278 |
12 | 337843733 |
13 | 19837c137 |
14 | d690a82b |
15 | 84a7aca6 |
hex | 54a9ec57 |
1420422231 has 8 divisors (see below), whose sum is σ = 1896968304. Its totient is φ = 945412160.
The previous prime is 1420422217. The next prime is 1420422251. The reversal of 1420422231 is 1322240241.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1420422231 - 29 = 1420421719 is a prime.
It is a super-2 number, since 2×14204222312 = 4035198628638034722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1420422198 and 1420422207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1420422251) 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 7 ways as a sum of consecutive naturals, for example, 381840 + ... + 385541.
It is an arithmetic number, because the mean of its divisors is an integer number (237121038).
Almost surely, 21420422231 is an apocalyptic number.
1420422231 is a deficient number, since it is larger than the sum of its proper divisors (476546073).
1420422231 is an equidigital number, since it uses as much as digits as its factorization.
1420422231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 768001.
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 1420422231 is about 37688.4893700981. The cubic root of 1420422231 is about 1124.1022582189.
Adding to 1420422231 its reverse (1322240241), we get a palindrome (2742662472).
The spelling of 1420422231 in words is "one billion, four hundred twenty million, four hundred twenty-two thousand, two hundred thirty-one".
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