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30202033 = 148120393
BaseRepresentation
bin111001100110…
…1100010110001
32002211102101211
41303031202301
530212431113
62555200121
7514466401
oct163154261
962742354
1030202033
1116059264
12a146041
136345c34
144022801
1529b8b3d
hex1ccd8b1

30202033 has 4 divisors (see below), whose sum is σ = 30223908. Its totient is φ = 30180160.

The previous prime is 30202019. The next prime is 30202049. The reversal of 30202033 is 33020203.

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 14615329 + 15586704 = 3823^2 + 3948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30202033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30202063) 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, 8716 + ... + 11677.

It is an arithmetic number, because the mean of its divisors is an integer number (7555977).

Almost surely, 230202033 is an apocalyptic number.

It is an amenable number.

30202033 is a deficient number, since it is larger than the sum of its proper divisors (21875).

30202033 is a wasteful number, since it uses less digits than its factorization.

30202033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21874.

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 30202033 is about 5495.6376336145. The cubic root of 30202033 is about 311.4192056434.

Adding to 30202033 its reverse (33020203), we get a palindrome (63222236).

It can be divided in two parts, 3020203 and 3, that multiplied together give a palindrome (9060609).

The spelling of 30202033 in words is "thirty million, two hundred two thousand, thirty-three".

Divisors: 1 1481 20393 30202033