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9301421 = 31329717
BaseRepresentation
bin100011011110…
…110110101101
3122111120011002
4203132312231
54340121141
6531210045
7142026563
oct43366655
918446132
109301421
115283328
123146925
131c088cc
141341a33
15c3ae9b
hex8dedad

9301421 has 4 divisors (see below), whose sum is σ = 9331452. Its totient is φ = 9271392.

The previous prime is 9301417. The next prime is 9301423. The reversal of 9301421 is 1241039.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 6100900 = 1789^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 9301421 - 22 = 9301417 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9301393 and 9301402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9301423) 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, 14546 + ... + 15171.

It is an arithmetic number, because the mean of its divisors is an integer number (2332863).

Almost surely, 29301421 is an apocalyptic number.

It is an amenable number.

9301421 is a deficient number, since it is larger than the sum of its proper divisors (30031).

9301421 is a wasteful number, since it uses less digits than its factorization.

9301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30030.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 9301421 is about 3049.8231096246. The cubic root of 9301421 is about 210.3050818925.

The spelling of 9301421 in words is "nine million, three hundred one thousand, four hundred twenty-one".

Divisors: 1 313 29717 9301421