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13102043 = 107122449
BaseRepresentation
bin110001111110…
…101111011011
3220122122121212
4301332233123
511323231133
61144453335
7216236243
oct61765733
926578555
1013102043
117439839
12447a24b
1329397b6
141a50b23
15123c148
hexc7ebdb

13102043 has 4 divisors (see below), whose sum is σ = 13224600. Its totient is φ = 12979488.

The previous prime is 13102031. The next prime is 13102069. The reversal of 13102043 is 34020131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13102043 - 28 = 13101787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13102003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61118 + ... + 61331.

It is an arithmetic number, because the mean of its divisors is an integer number (3306150).

Almost surely, 213102043 is an apocalyptic number.

13102043 is a deficient number, since it is larger than the sum of its proper divisors (122557).

13102043 is a wasteful number, since it uses less digits than its factorization.

13102043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122556.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13102043 is about 3619.6744328738. The cubic root of 13102043 is about 235.7470897368.

Adding to 13102043 its reverse (34020131), we get a palindrome (47122174).

The spelling of 13102043 in words is "thirteen million, one hundred two thousand, forty-three".

Divisors: 1 107 122449 13102043