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331240014 = 23272628889
BaseRepresentation
bin10011101111100…
…101001001001110
3212002021201212200
4103233211021032
51134244140024
652511342330
711131331220
oct2357451116
9762251780
10331240014
1115aa81586
1292b219a6
1353818311
1431dc6410
151e1302c9
hex13be524e

331240014 has 24 divisors (see below), whose sum is σ = 820213680. Its totient is φ = 94639968.

The previous prime is 331239971. The next prime is 331240033. The reversal of 331240014 is 410042133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1314319 + ... + 1314570.

It is an arithmetic number, because the mean of its divisors is an integer number (34175570).

Almost surely, 2331240014 is an apocalyptic number.

331240014 is an abundant number, since it is smaller than the sum of its proper divisors (488973666).

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

331240014 is a wasteful number, since it uses less digits than its factorization.

331240014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628904 (or 2628901 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 331240014 is about 18200.0003846154. Note that the first 3 decimals coincide. The cubic root of 331240014 is about 691.9067988460.

Adding to 331240014 its reverse (410042133), we get a palindrome (741282147).

The spelling of 331240014 in words is "three hundred thirty-one million, two hundred forty thousand, fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 2628889 5257778 7886667 15773334 18402223 23660001 36804446 47320002 55206669 110413338 165620007 331240014