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13403013 = 313343667
BaseRepresentation
bin110011001000…
…001110000101
3221012221110220
4303020032011
511412344023
61155134553
7221631561
oct63101605
927187426
1013403013
117624978
1245a4459
132a137a0
141acc6a1
15129b3e3
hexcc8385

13403013 has 8 divisors (see below), whose sum is σ = 19245408. Its totient is φ = 8247984.

The previous prime is 13402993. The next prime is 13403041. The reversal of 13403013 is 31030431.

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

It is not a de Polignac number, because 13403013 - 210 = 13401989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13402983 and 13403001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403053) 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, 171795 + ... + 171872.

It is an arithmetic number, because the mean of its divisors is an integer number (2405676).

Almost surely, 213403013 is an apocalyptic number.

13403013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13403013 is a deficient number, since it is larger than the sum of its proper divisors (5842395).

13403013 is a wasteful number, since it uses less digits than its factorization.

13403013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343683.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13403013 is about 3661.0125648514. The cubic root of 13403013 is about 237.5385747131.

Adding to 13403013 its reverse (31030431), we get a palindrome (44433444).

The spelling of 13403013 in words is "thirteen million, four hundred three thousand, thirteen".

Divisors: 1 3 13 39 343667 1031001 4467671 13403013