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331201330 = 25611633331
BaseRepresentation
bin10011101111011…
…011101100110010
3212002012202210221
4103233123230302
51134241420310
652510443254
711131110355
oct2357335462
9762182727
10331201330
1115aa55509
1292b0352a
1353803825
1431db629c
151e123ada
hex13bdbb32

331201330 has 32 divisors (see below), whose sum is σ = 609835968. Its totient is φ = 129470400.

The previous prime is 331201313. The next prime is 331201337. The reversal of 331201330 is 33102133.

It is not an unprimeable number, because it can be changed into a prime (331201337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97765 + ... + 101095.

It is an arithmetic number, because the mean of its divisors is an integer number (19057374).

Almost surely, 2331201330 is an apocalyptic number.

331201330 is a deficient number, since it is larger than the sum of its proper divisors (278634638).

331201330 is a wasteful number, since it uses less digits than its factorization.

331201330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 331201330 is about 18198.9376063549. The cubic root of 331201330 is about 691.8798629249.

Adding to 331201330 its reverse (33102133), we get a palindrome (364303463).

The spelling of 331201330 in words is "three hundred thirty-one million, two hundred one thousand, three hundred thirty".

Divisors: 1 2 5 10 61 122 163 305 326 610 815 1630 3331 6662 9943 16655 19886 33310 49715 99430 203191 406382 542953 1015955 1085906 2031910 2714765 5429530 33120133 66240266 165600665 331201330