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13021103 = 113139829
BaseRepresentation
bin110001101010…
…111110101111
3220111112121002
4301222332233
511313133403
61143030515
7215451254
oct61527657
926445532
1013021103
117393a47
12443b43b
13290b9c4
141a2d42b
151223188
hexc6afaf

13021103 has 8 divisors (see below), whose sum is σ = 13246800. Its totient is φ = 12797568.

The previous prime is 13021079. The next prime is 13021117. The reversal of 13021103 is 30112031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13021103 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 (13021163) 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, 15293 + ... + 16121.

It is an arithmetic number, because the mean of its divisors is an integer number (1655850).

Almost surely, 213021103 is an apocalyptic number.

13021103 is a deficient number, since it is larger than the sum of its proper divisors (225697).

13021103 is a wasteful number, since it uses less digits than its factorization.

13021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13021103 is about 3608.4765483511. The cubic root of 13021103 is about 235.2606313118.

Adding to 13021103 its reverse (30112031), we get a palindrome (43133134).

The spelling of 13021103 in words is "thirteen million, twenty-one thousand, one hundred three".

Divisors: 1 113 139 829 15707 93677 115231 13021103