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1331330230 = 25712816673
BaseRepresentation
bin100111101011010…
…0111110010110110
310102210010120202001
41033112213302312
510211310031410
6340035005514
744664056146
oct11726476266
93383116661
101331330230
1162355711a
12311a3989a
13182a87589
14c8b58926
157bd2d33a
hex4f5a7cb6

1331330230 has 32 divisors (see below), whose sum is σ = 2439160128. Its totient is φ = 523084800.

The previous prime is 1331330219. The next prime is 1331330239. The reversal of 1331330230 is 320331331.

It is a junction number, because it is equal to n+sod(n) for n = 1331330198 and 1331330207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331330239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196174 + ... + 202846.

It is an arithmetic number, because the mean of its divisors is an integer number (76223754).

Almost surely, 21331330230 is an apocalyptic number.

1331330230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331330230 is a deficient number, since it is larger than the sum of its proper divisors (1107829898).

1331330230 is a wasteful number, since it uses less digits than its factorization.

1331330230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7032.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 1331330230 is about 36487.3982355552. The cubic root of 1331330230 is about 1100.0909649292.

Adding to 1331330230 its reverse (320331331), we get a palindrome (1651661561).

The spelling of 1331330230 in words is "one billion, three hundred thirty-one million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 71 142 281 355 562 710 1405 2810 6673 13346 19951 33365 39902 66730 99755 199510 473783 947566 1875113 2368915 3750226 4737830 9375565 18751130 133133023 266266046 665665115 1331330230