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13100033021 = 60721581603
BaseRepresentation
bin11000011001101001…
…01010001111111101
31020210222000121222012
430030310222033331
5203312102024041
610003523101005
7642426305045
oct141464521775
936728017865
1013100033021
115612699779
122657211765
13130a02753a
148c3b68725
1551a1113eb
hex30cd2a3fd

13100033021 has 4 divisors (see below), whose sum is σ = 13121615232. Its totient is φ = 13078450812.

The previous prime is 13100033003. The next prime is 13100033059. The reversal of 13100033021 is 12033000131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13100033021 - 230 = 12026291197 is a prime.

It is a super-2 number, since 2×131000330212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13100032987 and 13100033005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100033321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10790195 + ... + 10791408.

It is an arithmetic number, because the mean of its divisors is an integer number (3280403808).

Almost surely, 213100033021 is an apocalyptic number.

It is an amenable number.

13100033021 is a deficient number, since it is larger than the sum of its proper divisors (21582211).

13100033021 is an equidigital number, since it uses as much as digits as its factorization.

13100033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21582210.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13100033021 its reverse (12033000131), we get a palindrome (25133033152).

The spelling of 13100033021 in words is "thirteen billion, one hundred million, thirty-three thousand, twenty-one".

Divisors: 1 607 21581603 13100033021