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33240430 = 253789839
BaseRepresentation
bin111111011001…
…1010101101110
32022112210022001
41332303111232
532002143210
63144242514
7552352606
oct176632556
968483261
1033240430
1117844033
12b17043a
136b6abc2
1445b3c06
152db903a
hex1fb356e

33240430 has 16 divisors (see below), whose sum is σ = 61450560. Its totient is φ = 12936672.

The previous prime is 33240391. The next prime is 33240433. The reversal of 33240430 is 3404233.

It is a super-2 number, since 2×332404302 = 2209852373169800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240398 and 33240407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44550 + ... + 45289.

It is an arithmetic number, because the mean of its divisors is an integer number (3840660).

Almost surely, 233240430 is an apocalyptic number.

33240430 is a deficient number, since it is larger than the sum of its proper divisors (28210130).

33240430 is a wasteful number, since it uses less digits than its factorization.

33240430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89883.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33240430 is about 5765.4514133761. The cubic root of 33240430 is about 321.5305260583.

Adding to 33240430 its reverse (3404233), we get a palindrome (36644663).

It can be divided in two parts, 33240 and 430, that added together give a triangular number (33670 = T259).

The spelling of 33240430 in words is "thirty-three million, two hundred forty thousand, four hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 89839 179678 449195 898390 3324043 6648086 16620215 33240430