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13633313213 = 133211732653
BaseRepresentation
bin11001011001001101…
…11101100110111101
31022012010111001212102
430230212331212331
5210410112010323
610132453114445
7661563151562
oct145446754675
938163431772
1013633313213
115866717003
122785928a25
131393662650
14934904869
1554bd50328
hex32c9bd9bd

13633313213 has 8 divisors (see below), whose sum is σ = 14682936408. Its totient is φ = 12583819584.

The previous prime is 13633313203. The next prime is 13633313233. The reversal of 13633313213 is 31231333631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 484792324 + 13148520889 = 22018^2 + 114667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13633313213 - 212 = 13633309117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13633313203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401195 + ... + 433847.

It is an arithmetic number, because the mean of its divisors is an integer number (1835367051).

Almost surely, 213633313213 is an apocalyptic number.

13633313213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13633313213 is a deficient number, since it is larger than the sum of its proper divisors (1049623195).

13633313213 is a wasteful number, since it uses less digits than its factorization.

13633313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64783.

The product of its digits is 8748, while the sum is 29.

Adding to 13633313213 its reverse (31231333631), we get a palindrome (44864646844).

The spelling of 13633313213 in words is "thirteen billion, six hundred thirty-three million, three hundred thirteen thousand, two hundred thirteen".

Divisors: 1 13 32117 32653 417521 424489 1048716401 13633313213