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9010213 = 29310697
BaseRepresentation
bin100010010111…
…110000100101
3121221202200121
4202113300211
54301311323
6521041541
7136404562
oct42276045
917852617
109010213
1150a4563
1230262b1
131b361b4
1412a7869
15bcea5d
hex897c25

9010213 has 4 divisors (see below), whose sum is σ = 9320940. Its totient is φ = 8699488.

The previous prime is 9010207. The next prime is 9010219. The reversal of 9010213 is 3120109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3120109 = 5036203.

It is an interprime number because it is at equal distance from previous prime (9010207) and next prime (9010219).

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 7219969 = 1338^2 + 2687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9010213 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 (9010219) 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, 155320 + ... + 155377.

It is an arithmetic number, because the mean of its divisors is an integer number (2330235).

Almost surely, 29010213 is an apocalyptic number.

It is an amenable number.

9010213 is a deficient number, since it is larger than the sum of its proper divisors (310727).

9010213 is a wasteful number, since it uses less digits than its factorization.

9010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310726.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 9010213 is about 3001.7016840452. The cubic root of 9010213 is about 208.0870336587.

The spelling of 9010213 in words is "nine million, ten thousand, two hundred thirteen".

Divisors: 1 29 310697 9010213