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331230426 = 2355205071
BaseRepresentation
bin10011101111100…
…010110011011010
3212002021020201120
4103233202303122
51134243333201
652511230110
711131261242
oct2357426332
9762236646
10331230426
1115aa7535a
1292b18336
1353813b47
1431dc2b22
151e12c536
hex13be2cda

331230426 has 8 divisors (see below), whose sum is σ = 662460864. Its totient is φ = 110410140.

The previous prime is 331230421. The next prime is 331230503. The reversal of 331230426 is 624032133.

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

331230426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 331230396 and 331230405.

It is not an unprimeable number, because it can be changed into a prime (331230421) 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 3 ways as a sum of consecutive naturals, for example, 27602530 + ... + 27602541.

It is an arithmetic number, because the mean of its divisors is an integer number (82807608).

Almost surely, 2331230426 is an apocalyptic number.

331230426 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.

331230426 is a wasteful number, since it uses less digits than its factorization.

331230426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55205076.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 331230426 is about 18199.7369761214. The cubic root of 331230426 is about 691.9001228546.

Adding to 331230426 its reverse (624032133), we get a palindrome (955262559).

The spelling of 331230426 in words is "three hundred thirty-one million, two hundred thirty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 55205071 110410142 165615213 331230426