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9300421 = 13715417
BaseRepresentation
bin100011011110…
…100111000101
3122111111210001
4203132213011
54340103141
6531201301
7142023634
oct43364705
918444701
109300421
1152825a9
123146231
131c08310
14134151b
15c3aa31
hex8de9c5

9300421 has 4 divisors (see below), whose sum is σ = 10015852. Its totient is φ = 8584992.

The previous prime is 9300409. The next prime is 9300437. The reversal of 9300421 is 1240039.

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 532900 + 8767521 = 730^2 + 2961^2 .

It is not a de Polignac number, because 9300421 - 27 = 9300293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9300451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357696 + ... + 357721.

It is an arithmetic number, because the mean of its divisors is an integer number (2503963).

Almost surely, 29300421 is an apocalyptic number.

It is an amenable number.

9300421 is a deficient number, since it is larger than the sum of its proper divisors (715431).

9300421 is a wasteful number, since it uses less digits than its factorization.

9300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715430.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 9300421 is about 3049.6591612834. The cubic root of 9300421 is about 210.2975449574.

It can be divided in two parts, 93004 and 21, that added together give a square (93025 = 3052).

The spelling of 9300421 in words is "nine million, three hundred thousand, four hundred twenty-one".

Divisors: 1 13 715417 9300421