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13011220200 = 23352113753281
BaseRepresentation
bin11000001111000011…
…10111011011101000
31020120202220110200110
430013201313123220
5203121333021300
65551031334320
7640300355406
oct140741673350
936522813613
1013011220200
115577549350
1226315213a0
1312c47cca84
148b604a476
1551241b550
hex3078776e8

13011220200 has 192 divisors, whose sum is σ = 45191661120. Its totient is φ = 3068928000.

The previous prime is 13011220141. The next prime is 13011220207. The reversal of 13011220200 is 202211031.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (13011220207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217560 + ... + 270840.

It is an arithmetic number, because the mean of its divisors is an integer number (235373235).

Almost surely, 213011220200 is an apocalyptic number.

13011220200 is a gapful number since it is divisible by the number (10) 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 13011220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22595830560).

13011220200 is an abundant number, since it is smaller than the sum of its proper divisors (32180440920).

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

13011220200 is a wasteful number, since it uses less digits than its factorization.

13011220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53348 (or 53339 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 13011220200 its reverse (202211031), we get a palindrome (13213431231).

The spelling of 13011220200 in words is "thirteen billion, eleven million, two hundred twenty thousand, two hundred".