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13013013 = 313333667
BaseRepresentation
bin110001101001…
…000000010101
3220111010111110
4301221000111
511312404023
61142525233
7215415546
oct61510025
926433443
1013013013
117388962
124436819
132908110
141a2a4cd
151220a93
hexc69015

13013013 has 8 divisors (see below), whose sum is σ = 18685408. Its totient is φ = 8007984.

The previous prime is 13012999. The next prime is 13013023. The reversal of 13013013 is 31031031.

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

It is not a de Polignac number, because 13013013 - 28 = 13012757 is a prime.

It is a Duffinian number.

13013013 is a modest number, since divided by 13013 gives 13 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 13013013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013023) 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, 166795 + ... + 166872.

It is an arithmetic number, because the mean of its divisors is an integer number (2335676).

Almost surely, 213013013 is an apocalyptic number.

13013013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13013013 is a deficient number, since it is larger than the sum of its proper divisors (5672395).

13013013 is a wasteful number, since it uses less digits than its factorization.

13013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333683.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 13013013 is about 3607.3554025075. The cubic root of 13013013 is about 235.2118988092.

Adding to 13013013 its reverse (31031031), we get a palindrome (44044044).

The spelling of 13013013 in words is "thirteen million, thirteen thousand, thirteen".

Divisors: 1 3 13 39 333667 1001001 4337671 13013013