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13000303220 = 2253153395627
BaseRepresentation
bin11000001101110000…
…01110001001110100
31020120000100211101212
430012320032021310
5203111034200340
65550001340552
7640105516442
oct140670161164
936500324355
1013000303220
115571372253
122629937758
1312c2479a18
148b4807b92
155114b1a65
hex306e0e274

13000303220 has 48 divisors (see below), whose sum is σ = 28713097728. Its totient is φ = 4937412480.

The previous prime is 13000303213. The next prime is 13000303229. The reversal of 13000303220 is 2230300031.

It is a junction number, because it is equal to n+sod(n) for n = 13000303195 and 13000303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000303229) 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, 164954 + ... + 230673.

It is an arithmetic number, because the mean of its divisors is an integer number (598189536).

Almost surely, 213000303220 is an apocalyptic number.

13000303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000303220 is an abundant number, since it is smaller than the sum of its proper divisors (15712794508).

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

13000303220 is a wasteful number, since it uses less digits than its factorization.

13000303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395720 (or 395718 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 13000303220 its reverse (2230300031), we get a palindrome (15230603251).

The spelling of 13000303220 in words is "thirteen billion, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 53 62 106 124 155 212 265 310 530 620 1060 1643 3286 6572 8215 16430 32860 395627 791254 1582508 1978135 3956270 7912540 12264437 20968231 24528874 41936462 49057748 61322185 83872924 104841155 122644370 209682310 245288740 419364620 650015161 1300030322 2600060644 3250075805 6500151610 13000303220