Base | Representation |
---|---|
bin | 100100110001101… |
… | …1101001100111101 |
3 | 10012000001021212110 |
4 | 1021203131030331 |
5 | 10011403001141 |
6 | 322241324233 |
7 | 42403044150 |
oct | 11143351475 |
9 | 3160037773 |
10 | 1234031421 |
11 | 583640087 |
12 | 2a5336679 |
13 | 16887b40c |
14 | b9c6bc97 |
15 | 7350de16 |
hex | 498dd33d |
1234031421 has 8 divisors (see below), whose sum is σ = 1880428864. Its totient is φ = 705160800.
The previous prime is 1234031413. The next prime is 1234031431. The reversal of 1234031421 is 1241304321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1234031421 - 23 = 1234031413 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 58763401 = 1234031421 / (1 + 2 + 3 + 4 + 0 + 3 + 1 + 4 + 2 + 1).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1234031431) 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, 29381680 + ... + 29381721.
It is an arithmetic number, because the mean of its divisors is an integer number (235053608).
Almost surely, 21234031421 is an apocalyptic number.
It is an amenable number.
1234031421 is a deficient number, since it is larger than the sum of its proper divisors (646397443).
1234031421 is an equidigital number, since it uses as much as digits as its factorization.
1234031421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58763411.
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 1234031421 is about 35128.7833691974. The cubic root of 1234031421 is about 1072.6105705901.
Adding to 1234031421 its reverse (1241304321), we get a palindrome (2475335742).
The spelling of 1234031421 in words is "one billion, two hundred thirty-four million, thirty-one thousand, four hundred twenty-one".
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