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13210130320 = 245723722817
BaseRepresentation
bin11000100110110001…
…01001011110010000
31021002122012011001221
430103120221132100
5204023243132240
610022454534424
7645234153322
oct142330513620
937078164057
1013210130320
115669857482
122688067414
131326a94c7a
148d4627612
15524b0ca4a
hex313629790

13210130320 has 40 divisors (see below), whose sum is σ = 30719143224. Its totient is φ = 5283090432.

The previous prime is 13210130309. The next prime is 13210130407. The reversal of 13210130320 is 2303101231.

It can be written as a sum of positive squares in 4 ways, for example, as 6402560256 + 6807570064 = 80016^2 + 82508^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 13210130294 and 13210130303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567552 + ... + 590368.

Almost surely, 213210130320 is an apocalyptic number.

13210130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13210130320 is an abundant number, since it is smaller than the sum of its proper divisors (17509012904).

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

13210130320 is a wasteful number, since it uses less digits than its factorization.

13210130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30067 (or 30061 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13210130320 its reverse (2303101231), we get a palindrome (15513231551).

The spelling of 13210130320 in words is "thirteen billion, two hundred ten million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 7237 14474 22817 28948 36185 45634 57896 72370 91268 114085 115792 144740 182536 228170 289480 365072 456340 578960 912680 1825360 165126629 330253258 660506516 825633145 1321013032 1651266290 2642026064 3302532580 6605065160 13210130320