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33301021 = 137093613
BaseRepresentation
bin111111100001…
…0001000011101
32022122212102011
41333002020131
532011113041
63145431221
7553024345
oct177021035
968585364
1033301021
1117885606
12b19b511
136b8c660
1445cbd25
152dcbe81
hex1fc221d

33301021 has 8 divisors (see below), whose sum is σ = 35923160. Its totient is φ = 30687552.

The previous prime is 33301003. The next prime is 33301027. The reversal of 33301021 is 12010333.

It can be written as a sum of positive squares in 4 ways, for example, as 4796100 + 28504921 = 2190^2 + 5339^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33301021 - 215 = 33268253 is a prime.

It is a super-2 number, since 2×333010212 = 2217915999284882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 33300992 and 33301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33301027) 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 7 ways as a sum of consecutive naturals, for example, 7411 + ... + 11023.

It is an arithmetic number, because the mean of its divisors is an integer number (4490395).

Almost surely, 233301021 is an apocalyptic number.

It is an amenable number.

33301021 is a deficient number, since it is larger than the sum of its proper divisors (2622139).

33301021 is a wasteful number, since it uses less digits than its factorization.

33301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 33301021 is about 5770.7036832608. The cubic root of 33301021 is about 321.7257705325.

Adding to 33301021 its reverse (12010333), we get a palindrome (45311354).

The spelling of 33301021 in words is "thirty-three million, three hundred one thousand, twenty-one".

Divisors: 1 13 709 3613 9217 46969 2561617 33301021