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30121302 = 235020217
BaseRepresentation
bin111001011100…
…1110101010110
32002200022122210
41302321311112
530202340202
62553334250
7514012131
oct162716526
962608583
1030121302
1116003642
12a107386
136318273
144001218
15299ec6c
hex1cb9d56

30121302 has 8 divisors (see below), whose sum is σ = 60242616. Its totient is φ = 10040432.

The previous prime is 30121271. The next prime is 30121303. The reversal of 30121302 is 20312103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

30121302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121303) 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, 2510103 + ... + 2510114.

It is an arithmetic number, because the mean of its divisors is an integer number (7530327).

Almost surely, 230121302 is an apocalyptic number.

30121302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30121302 is a wasteful number, since it uses less digits than its factorization.

30121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020222.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30121302 is about 5488.2877111172. The cubic root of 30121302 is about 311.1414802081.

Adding to 30121302 its reverse (20312103), we get a palindrome (50433405).

The spelling of 30121302 in words is "thirty million, one hundred twenty-one thousand, three hundred two".

Divisors: 1 2 3 6 5020217 10040434 15060651 30121302