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30203313 = 371438253
BaseRepresentation
bin111001100110…
…1110110110001
32002211111011020
41303031312301
530213001223
62555210053
7514503210
oct163156661
962744136
1030203313
111605a218
12a146929
1363466aa
144023077
1529b91e3
hex1ccddb1

30203313 has 8 divisors (see below), whose sum is σ = 46024128. Its totient is φ = 17259024.

The previous prime is 30203311. The next prime is 30203333. The reversal of 30203313 is 31330203.

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

It is not a de Polignac number, because 30203313 - 21 = 30203311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30203292 and 30203301.

It is not an unprimeable number, because it can be changed into a prime (30203311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719106 + ... + 719147.

It is an arithmetic number, because the mean of its divisors is an integer number (5753016).

Almost surely, 230203313 is an apocalyptic number.

It is an amenable number.

30203313 is a deficient number, since it is larger than the sum of its proper divisors (15820815).

30203313 is a wasteful number, since it uses less digits than its factorization.

30203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438263.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 30203313 is about 5495.7540883850. The cubic root of 30203313 is about 311.4236050266.

Adding to 30203313 its reverse (31330203), we get a palindrome (61533516).

The spelling of 30203313 in words is "thirty million, two hundred three thousand, three hundred thirteen".

Divisors: 1 3 7 21 1438253 4314759 10067771 30203313