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13031020200 = 233521117116141
BaseRepresentation
bin11000010001011010…
…11001011010101000
31020122011011102011210
430020231121122220
5203141420121300
65553015553120
7640630562352
oct141055313250
936564142153
1013031020200
115587742390
12263808b7a0
1312c8943153
148b89220d2
1551402d050
hex308b596a8

13031020200 has 192 divisors, whose sum is σ = 46661209920. Its totient is φ = 2973184000.

The previous prime is 13031020193. The next prime is 13031020207. The reversal of 13031020200 is 202013031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13031020193) and next prime (13031020207).

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 (13031020207) 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, 54130 + ... + 170270.

It is an arithmetic number, because the mean of its divisors is an integer number (243027135).

Almost surely, 213031020200 is an apocalyptic number.

13031020200 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 13031020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23330604960).

13031020200 is an abundant number, since it is smaller than the sum of its proper divisors (33630189720).

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

13031020200 is a wasteful number, since it uses less digits than its factorization.

13031020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116188 (or 116179 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 13031020200 its reverse (202013031), we get a palindrome (13233033231).

The spelling of 13031020200 in words is "thirteen billion, thirty-one million, twenty thousand, two hundred".