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13131321200 = 245232828303
BaseRepresentation
bin11000011101011000…
…00000111101110000
31020220010220020021122
430032230000331300
5203343104234300
610011001441412
7643256250164
oct141654007560
936803806248
1013131321200
115629319a78
1226657a0268
13131366095a
148c7d90ca4
1551cc41c85
hex30eb00f70

13131321200 has 30 divisors (see below), whose sum is σ = 31548000144. Its totient is φ = 5252528320.

The previous prime is 13131321197. The next prime is 13131321251. The reversal of 13131321200 is 212313131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16413752 + ... + 16414551.

Almost surely, 213131321200 is an apocalyptic number.

13131321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131321200 is an abundant number, since it is smaller than the sum of its proper divisors (18416678944).

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

13131321200 is a wasteful number, since it uses less digits than its factorization.

13131321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32828321 (or 32828310 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13131321200 its reverse (212313131), we get a palindrome (13343634331).

The spelling of 13131321200 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 32828303 65656606 131313212 164141515 262626424 328283030 525252848 656566060 820707575 1313132120 1641415150 2626264240 3282830300 6565660600 13131321200