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30302131001320 = 2356731873547777
BaseRepresentation
bin1101110001111010000111…
…10000010001011111101000
310222021212002121110212111001
412320331003300101133220
512432432231014020240
6144240335023044344
76245154024464443
oct670750360213750
9128255077425431
1030302131001320
119723074a80172
12349490a4406b4
1313ba62b8c1689
1476a8b952865a
153783645c589a
hex1b8f43c117e8

30302131001320 has 64 divisors (see below), whose sum is σ = 69219135535680. Its totient is φ = 11936194338816.

The previous prime is 30302131001243. The next prime is 30302131001321. The reversal of 30302131001320 is 2310013120303.

It is not an unprimeable number, because it can be changed into a prime (30302131001321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6767272 + ... + 10315048.

It is an arithmetic number, because the mean of its divisors is an integer number (1081548992745).

Almost surely, 230302131001320 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 30302131001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34609567767840).

30302131001320 is an abundant number, since it is smaller than the sum of its proper divisors (38917004534360).

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

30302131001320 is a wasteful number, since it uses less digits than its factorization.

30302131001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551042 (or 3551038 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30302131001320 its reverse (2310013120303), we get a palindrome (32612144121623).

The spelling of 30302131001320 in words is "thirty trillion, three hundred two billion, one hundred thirty-one million, one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 3187 6374 12748 15935 25496 31870 63740 127480 213529 427058 854116 1067645 1708232 2135290 3547777 4270580 7095554 8541160 14191108 17738885 28382216 35477770 70955540 141911080 237701059 475402118 950804236 1188505295 1901608472 2377010590 4754021180 9508042360 11306765299 22613530598 45227061196 56533826495 90454122392 113067652990 226135305980 452270611960 757553275033 1515106550066 3030213100132 3787766375165 6060426200264 7575532750330 15151065500660 30302131001320