| Base | Representation |
|---|---|
| bin | 101000101000… |
| … | …011100011101 |
| 3 | 202001011000002 |
| 4 | 220220130131 |
| 5 | 10211321141 |
| 6 | 1020144045 |
| 7 | 156351464 |
| oct | 50503435 |
| 9 | 22034002 |
| 10 | 10651421 |
| 11 | 6015630 |
| 12 | 3698025 |
| 13 | 228c221 |
| 14 | 15b39db |
| 15 | e05e9b |
| hex | a2871d |
10651421 has 4 divisors (see below), whose sum is σ = 11619744. Its totient is φ = 9683100.
The previous prime is 10651409. The next prime is 10651423. The reversal of 10651421 is 12415601.
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: 12415601 = 11 ⋅1128691.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10651421 is a prime.
It is a super-2 number, since 2×106514212 = 226905538638482, which contains 22 as substring.
It is a pancake number, because a pancake can be divided into 10651421 parts by 4615 straight cuts.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10651393 and 10651402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10651423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484145 + ... + 484166.
It is an arithmetic number, because the mean of its divisors is an integer number (2904936).
Almost surely, 210651421 is an apocalyptic number.
10651421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
10651421 is a deficient number, since it is larger than the sum of its proper divisors (968323).
10651421 is an equidigital number, since it uses as much as digits as its factorization.
10651421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 968322.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 10651421 is about 3263.6514826188. The cubic root of 10651421 is about 220.0235580833.
The spelling of 10651421 in words is "ten million, six hundred fifty-one thousand, four hundred twenty-one".
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