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13429423 = 71918489
BaseRepresentation
bin110011001110…
…101010101111
3221021021201001
4303032222233
511414220143
61155501131
7222101560
oct63165257
927237631
1013429423
1176427a7
1245b77a7
132a22807
141ad8167
1512a414d
hexcceaaf

13429423 has 4 divisors (see below), whose sum is σ = 15347920. Its totient is φ = 11510928.

The previous prime is 13429399. The next prime is 13429433. The reversal of 13429423 is 32492431.

13429423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13429423 - 29 = 13428911 is a prime.

It is a super-2 number, since 2×134294232 = 360698804225858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13429391 and 13429400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13429433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959238 + ... + 959251.

It is an arithmetic number, because the mean of its divisors is an integer number (3836980).

Almost surely, 213429423 is an apocalyptic number.

13429423 is a deficient number, since it is larger than the sum of its proper divisors (1918497).

13429423 is an equidigital number, since it uses as much as digits as its factorization.

13429423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918496.

The product of its digits is 5184, while the sum is 28.

The square root of 13429423 is about 3664.6177153968. The cubic root of 13429423 is about 237.6944918388.

The spelling of 13429423 in words is "thirteen million, four hundred twenty-nine thousand, four hundred twenty-three".

Divisors: 1 7 1918489 13429423