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13100101 = 721914071
BaseRepresentation
bin110001111110…
…010001000101
3220122112221221
4301332101011
511323200401
61144440341
7216230500
oct61762105
926575857
1013100101
117438333
1244790b1
132938951
141a50137
15123b7a1
hexc7e445

13100101 has 12 divisors (see below), whose sum is σ = 16042080. Its totient is φ = 10636920.

The previous prime is 13100089. The next prime is 13100111. The reversal of 13100101 is 10100131.

It is a happy number.

13100101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-13100101 is a prime.

It is a super-2 number, since 2×131001012 = 343225292420402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6105 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (1336840).

Almost surely, 213100101 is an apocalyptic number.

It is an amenable number.

13100101 is a deficient number, since it is larger than the sum of its proper divisors (2941979).

13100101 is a wasteful number, since it uses less digits than its factorization.

13100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104 (or 14097 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 13100101 is about 3619.4061667627. The cubic root of 13100101 is about 235.7354415923.

Adding to 13100101 its reverse (10100131), we get a palindrome (23200232).

The spelling of 13100101 in words is "thirteen million, one hundred thousand, one hundred one".

Divisors: 1 7 19 49 133 931 14071 98497 267349 689479 1871443 13100101