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13434869 = 72487563
BaseRepresentation
bin110011001111…
…111111110101
3221021120011202
4303033333311
511414403434
61155542245
7222123500
oct63177765
927246152
1013434869
1176468a8
1245ba985
132a25136
141ada137
1512a5a7e
hexccfff5

13434869 has 12 divisors (see below), whose sum is σ = 15688224. Its totient is φ = 11471544.

The previous prime is 13434853. The next prime is 13434887. The reversal of 13434869 is 96843431.

It is not a de Polignac number, because 13434869 - 24 = 13434853 is a prime.

It is a super-2 number, since 2×134348692 = 360991410094322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13434469) 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, 23582 + ... + 24144.

It is an arithmetic number, because the mean of its divisors is an integer number (1307352).

Almost surely, 213434869 is an apocalyptic number.

It is an amenable number.

13434869 is a deficient number, since it is larger than the sum of its proper divisors (2253355).

13434869 is an equidigital number, since it uses as much as digits as its factorization.

13434869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1057 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 13434869 is about 3665.3606916646. The cubic root of 13434869 is about 237.7266180456.

The spelling of 13434869 in words is "thirteen million, four hundred thirty-four thousand, eight hundred sixty-nine".

Divisors: 1 7 49 487 563 3409 3941 23863 27587 274181 1919267 13434869