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331030304 = 25112114457
BaseRepresentation
bin10011101110110…
…001111100100000
3212001220002012122
4103232301330200
51134220432204
652503043412
711126465633
oct2356617440
9761802178
10331030304
1115a948a70
1292a40568
1353773a27
1431d6dc1a
151e0dd0be
hex13bb1f20

331030304 has 48 divisors (see below), whose sum is σ = 714492576. Its totient is φ = 149721600.

The previous prime is 331030289. The next prime is 331030309. The reversal of 331030304 is 403030133.

It is not an unprimeable number, because it can be changed into a prime (331030309) 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, 72044 + ... + 76500.

It is an arithmetic number, because the mean of its divisors is an integer number (14885262).

Almost surely, 2331030304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331030304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357246288).

331030304 is an abundant number, since it is smaller than the sum of its proper divisors (383462272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331030304 is a wasteful number, since it uses less digits than its factorization.

331030304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689 (or 4681 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 331030304 is about 18194.2382088396. The cubic root of 331030304 is about 691.7607512666.

Adding to 331030304 its reverse (403030133), we get a palindrome (734060437).

The spelling of 331030304 in words is "three hundred thirty-one million, thirty thousand, three hundred four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 211 352 422 844 1688 2321 3376 4457 4642 6752 8914 9284 17828 18568 35656 37136 49027 71312 74272 98054 142624 196108 392216 784432 940427 1568864 1880854 3761708 7523416 10344697 15046832 20689394 30093664 41378788 82757576 165515152 331030304