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1330630308 = 2233712713859
BaseRepresentation
bin100111101001111…
…1100111010100100
310102201211000122000
41033103330322210
510211120132213
6340012005300
744655112440
oct11723747244
93381730560
101330630308
11623119277
12311760830
131828a0b17
14c8a15820
157bc40c73
hex4f4fcea4

1330630308 has 96 divisors (see below), whose sum is σ = 3973939200. Its totient is φ = 377159328.

The previous prime is 1330630303. The next prime is 1330630309. The reversal of 1330630308 is 8030360331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1330630303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89083 + ... + 102941.

It is an arithmetic number, because the mean of its divisors is an integer number (41395200).

Almost surely, 21330630308 is an apocalyptic number.

1330630308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330630308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1986969600).

1330630308 is an abundant number, since it is smaller than the sum of its proper divisors (2643308892).

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

1330630308 is a wasteful number, since it uses less digits than its factorization.

1330630308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14006 (or 13998 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1330630308 is about 36477.8056905840. The cubic root of 1330630308 is about 1099.8981470432.

Adding to 1330630308 its reverse (8030360331), we get a palindrome (9360990639).

The spelling of 1330630308 in words is "one billion, three hundred thirty million, six hundred thirty thousand, three hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 127 189 252 254 378 381 508 756 762 889 1143 1524 1778 2286 2667 3429 3556 4572 5334 6858 8001 10668 13716 13859 16002 24003 27718 32004 41577 48006 55436 83154 96012 97013 124731 166308 194026 249462 291039 374193 388052 498924 582078 748386 873117 1164156 1496772 1746234 1760093 2619351 3492468 3520186 5238702 5280279 7040372 10477404 10560558 12320651 15840837 21121116 24641302 31681674 36961953 47522511 49282604 63363348 73923906 95045022 110885859 147847812 190090044 221771718 332657577 443543436 665315154 1330630308