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13438607 = 713592503
BaseRepresentation
bin110011010000…
…111010001111
3221021202022012
4303100322033
511420013412
61200011435
7222140420
oct63207217
927252265
1013438607
117649696
124600b7b
132a26a50
141adb647
1512a6c22
hexcd0e8f

13438607 has 16 divisors (see below), whose sum is σ = 16826880. Its totient is φ = 10448352.

The previous prime is 13438603. The next prime is 13438609. The reversal of 13438607 is 70683431.

It is a cyclic number.

It is not a de Polignac number, because 13438607 - 22 = 13438603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4118 + ... + 6620.

It is an arithmetic number, because the mean of its divisors is an integer number (1051680).

Almost surely, 213438607 is an apocalyptic number.

13438607 is a deficient number, since it is larger than the sum of its proper divisors (3388273).

13438607 is a wasteful number, since it uses less digits than its factorization.

13438607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13438607 is about 3665.8705650909. The cubic root of 13438607 is about 237.7486636568.

The spelling of 13438607 in words is "thirteen million, four hundred thirty-eight thousand, six hundred seven".

Divisors: 1 7 13 59 91 413 767 2503 5369 17521 32539 147677 227773 1033739 1919801 13438607