| Base | Representation |
|---|---|
| bin | 111101011010010… |
| … | …010101011010101 |
| 3 | 2122210200210012221 |
| 4 | 331122102223111 |
| 5 | 4102224134141 |
| 6 | 250122542341 |
| 7 | 34350266101 |
| oct | 7532225325 |
| 9 | 2583623187 |
| 10 | 1030302421 |
| 11 | 489640505 |
| 12 | 2490679b1 |
| 13 | 1355b9a05 |
| 14 | 9ab98901 |
| 15 | 606b9bd1 |
| hex | 3d692ad5 |
1030302421 has 4 divisors (see below), whose sum is σ = 1031794144. Its totient is φ = 1028810700.
The previous prime is 1030302419. The next prime is 1030302431. The reversal of 1030302421 is 1242030301.
It is a happy number.
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, and also an emirpimes, since its reverse is a distinct semiprime: 1242030301 = 1753 ⋅708517.
It is a cyclic number.
It is not a de Polignac number, because 1030302421 - 21 = 1030302419 is a prime.
It is a super-2 number, since 2×10303024212 = 2123046157436922482, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1030302395 and 1030302404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030302431) 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 3 ways as a sum of consecutive naturals, for example, 744825 + ... + 746206.
It is an arithmetic number, because the mean of its divisors is an integer number (257948536).
Almost surely, 21030302421 is an apocalyptic number.
It is an amenable number.
1030302421 is a deficient number, since it is larger than the sum of its proper divisors (1491723).
1030302421 is an equidigital number, since it uses as much as digits as its factorization.
1030302421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1491722.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 1030302421 is about 32098.3242709024. The cubic root of 1030302421 is about 1010.0004643333. Note that the first 3 decimals are identical.
Adding to 1030302421 its reverse (1242030301), we get a palindrome (2272332722).
The spelling of 1030302421 in words is "one billion, thirty million, three hundred two thousand, four hundred twenty-one".
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