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13634293 = 611012213
BaseRepresentation
bin110100000000…
…101011110101
3221122200201211
4310000223311
511442244133
61204121421
7223614061
oct64005365
927580654
1013634293
117772712
124696271
132a94b3a
141b4caa1
1512e4bcd
hexd00af5

13634293 has 8 divisors (see below), whose sum is σ = 14001336. Its totient is φ = 13272000.

The previous prime is 13634273. The next prime is 13634317. The reversal of 13634293 is 39243631.

It can be written as a sum of positive squares in 4 ways, for example, as 6115729 + 7518564 = 2473^2 + 2742^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13634293 - 217 = 13503221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13634273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (1750167).

Almost surely, 213634293 is an apocalyptic number.

It is an amenable number.

13634293 is a deficient number, since it is larger than the sum of its proper divisors (367043).

13634293 is a wasteful number, since it uses less digits than its factorization.

13634293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its digits is 11664, while the sum is 31.

The square root of 13634293 is about 3692.4643532470. The cubic root of 13634293 is about 238.8970980253.

The spelling of 13634293 in words is "thirteen million, six hundred thirty-four thousand, two hundred ninety-three".

Divisors: 1 61 101 2213 6161 134993 223513 13634293